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  • 1960-1964  (493)
  • 1962  (493)
  • Chemical Engineering  (267)
  • Industrial Chemistry  (226)
  • Nuclear reactions
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Erscheinungszeitraum
  • 1960-1964  (493)
Jahr
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  • 1
    Digitale Medien
    Digitale Medien
    Masthead (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962) 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020101
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  • 2
    Digitale Medien
    Digitale Medien
    Abstracts of articles in this issue (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 2-4 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020102
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  • 3
    Digitale Medien
    Digitale Medien
    Crystallization kinetic studies of vinylidene chloride-alkyl acrylate copolymers by torsional measurementsPresented at the 140th National Meeting of the American Chemical Society, Chicago, Illinois, September 3-8, 1961. (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 7-10 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: By following the changes in torsional modulus as a function of time, the kinetics of crystallization of three copolymers of vinylidene chloride containing 10% mole % alkyl acrylate were investigated and the geometrical growth and nucleation constant of the Avrami equation was determined. Isotherms were superimposable within certain temperature ranges while the nucleation constant decreased with a decrease in temperature. Rate of crystallization increased with increase of the alkyl side chain length.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020104
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  • 4
    Digitale Medien
    Digitale Medien
    The hidden ingredient in plastics (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 5-6 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020103
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  • 5
    Digitale Medien
    Digitale Medien
    Comparative chemical means of assessing polyethylene oxidizabilityThis paper was presented as part of the Symposium on Stabilization of Polyolefins Sponsored by the Division of Paint, Plastics, and Printing Ink Chemistry at the 135th Meeting of the American Chemical Society in Boston, Massachusetts, April 1959. (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 11-20 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: This paper compares results of four accelerated oxidation tests: the hot milling test, reaction with fuming nitric acid, absorption of oxygen gas at elevated temperature and the redox system - polyethylene - lead peroxide ignition test. The length of the induction period, is a product of antioxidant concentration but not of the inherent oxidizability of the resin. Discrepancies between induction periods as measured by oxygen absorption and hot milling differ because in the former the volume of pure oxygen absorbed is measured and in the latter the electrical consequences of air oxidation. In addition other polymeric degradation occur in milling. Nitric Acid treatment measures the effect of nitric acid upon the specific viscosity and is useful for chain scission comparisons. The ignition tests reflect both inherent oxidizability and presence of antioxidant. All four tests reflect oxidation parameters.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020105
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  • 6
    Digitale Medien
    Digitale Medien
    Radiation and moisture effects in polymerized epoxy resinSupported in part by the U.S. Atomic Energy Commission under Contract at(30-1)-1858. (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 21-24 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The effects of moisture and rather large doses of reactor radiation (∼4 × 1011 ergs/gm) on the dynamic properties of polymerized epoxy resins have been investigated over the temperature range of 80°-450°K and at frequencies from 200 to 1400 cps. Data are presented for both unfilled and aluminum-filled systems of a bisphenol A based epoxy, (Epon 828) cured with metaphenylenediamine. Moisture absorption (0.88%) causes a shift of the main glass transition near 440°K to lower temperatures (∼25 degrees for unfilled epoxy). This is similar to the plasticizing action of small molecules absorbed in other polymers such as nylon 6-6. Irradiation to a dose of 4 × 1011 ergs/gm (4 × 109 rads) causes a shift to lower temperatures (∼50 degrees) of the onset of the main transition, and, in addition, results in both a shift to lower temperatures and a decrease in maximum height of the damping peak near 250°K. Chain scission, in a loosening of the structure and the breaking up of the partially flexible connecting groups, may be responsible for these radiation effects.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020106
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  • 7
    Digitale Medien
    Digitale Medien
    The effect of polymerization catalysts on the rate of degradation of isotactic polypropylene (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 25-27 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: One of the reasons for purification of low-pressure polymerization products is the assumed degradation effects of retained catalysts. Degree of degradation was determined from the change in viscosity number. Effects of catalysts on active sights and deactivation were noted along with degradation in the presence of air and oxygen in addition to determining, the effect of antioxidants. Individual components of the catalyst may have the ability to intensify the effect of any antioxidant and affect the rate of degradation where catalyst influence was better defined in the presence of oxygen.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020107
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  • 8
    Digitale Medien
    Digitale Medien
    An introduction to dynamic behaviour of high polymers symposium papers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 55-56 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020110
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  • 9
    Digitale Medien
    Digitale Medien
    Bibliography on ultraviolet degradation and stabilization of plastics (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 32-54 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A bibliography of references from 1957 through 1960 was prepared containing the following sub-headings: Protective Ultraviolet Absorbers, Light Sources, Light Fastness Evaluation, Plastics Degradation and Stabilization Polyesters, Polystyrene, Polyvinylchloride, Polyethylene, Polyacrylo and Methacrylonitrile, Polymethyl Methacrylate, Cellulose Acetate and Nitrate, Polyvinyl alcohol, Polyamides, Wool, Rubber, Silicone Resin, Wood, Dyes and Paint Films, Epoxy, Melamine and Urea Formaldehyde, Oil Films, General Mechanical Degradation, Free Radicals and ESR, Photochemistry, Photochemistry and Spectroscopy at Low Temperatures, Antioxidants and Free Radical Scavengers, Flash Photolysis, Energy Transfer, Phosphorence and the Triplet State, Fluorescence.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020109
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  • 10
    Digitale Medien
    Digitale Medien
    Dynamic shear behavior of high polymers at low frequencies (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 65-73 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The experimental techniques used to measure the dynamic shear behaviour of polymers at low frequencies, that is below 10 sec-1, are discussed with particular reference to the torsion pendulum. The various types of relaxations which can occur in amorphous and semicrystalline polymers are considered. Polymethyl methacrylate, polyethyl methacrylate, and polystyrene are examples of amorphous polymers. The effects of crosslinking, intermolecular forces, steric effects, and plasticizers on the main glass transition of other amorphous polymers are also described. Polytetrafluorethylene is an example of a linear, semi-crystalline polymer. The effect of introducing trifluoromethyl groups along the chain in copolymers of tetrafluoroethylene and hexafluoropropylene is described. Results obtained with polypropylene are also discussed.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020112
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  • 11
    Digitale Medien
    Digitale Medien
    Dynamic elastic behavior or high polymers at audiofrequenciesSupported in part by the U.S. Atomic Energy Commission under Contract No. AT(30-1)-1858, and by the National Science Foundation. (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 57-64 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A brief description is given of the use of a resonant-bar type apparatus for measurement of the dynamic elastic modulus and the associated damping or internal friction of a solid polymer. Each different type of polymer is found to exhibit a characteristic internal friction spectrum when explored over the temperature range from liquid nitrogen temperatures to the melting point. These spectra are characterized by the occurrence of one or more peaks in the mechanical loss data centered about certain temperatures, accompanied by an associated drop in dynamic modulus. By variation of polymer composition and of polymer structure, by addition of low molecular weight compounds, and by subjection of samples to irradiation, considerable additional information can be gained that would be helpful in determining the nature of the molecular mechanisms that are responsible for the observed transitions. Dynamic mechanical data are presented and discussed for a series of poly(alpha olefins) with methyl, ethyl, propyl, isopropyl and isobutyl side chains to depict the effects of crystallinity, side chain length and side chain structure on the observed transitions.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020111
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  • 12
    Digitale Medien
    Digitale Medien
    The relationships between the structures of organic phosphites and their effectiveness in poly(vinyl chloride) stabilization (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 28-31 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A series of thirty-three phosphites of varied structural variations were tested at 177°C in a vinyl compound utilizing co-precipitated barium cadmium laurate or a combination of barium nonylphenate and cadmium 2-ethylhexoate as the primary stabilizer. Best activity was found with mixed alky-aryl phosphites.
    Zusätzliches Material: 7 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020108
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  • 13
    Digitale Medien
    Digitale Medien
    Creep of high polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 74-81 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: For polymers the isothermal creep compliance shows a major dispersion region from the glassy compliance Jg to the quasi-equilibrium compliance Je. Further increases in compliance are associated with viscous flow. There is no detailed molecular mechanism to explain these phenomena although the modified Rouse theory and the postulated entanglement coupling present a reasonable physical concept. To empirically describe the creep curves of polycrystalline metals, a power law (\documentclass{article}\pagestyle{empty}\begin{document}$ \dot \varepsilon $\end{document} = mt-n) has frequently been used, where \documentclass{article}\pagestyle{empty}\begin{document}$ \dot \varepsilon $\end{document} is the creep rate, t is the time and m and n are constants with O≤n≤. In particular, n equal to 2/3 leads to Andrade creep, a relationship which is applicable to both polymers and metals. A comparison of the creep behavior of polymers and polycrystalline metals shows many points of similarity.
    Zusätzliches Material: 13 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020113
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  • 14
    Digitale Medien
    Digitale Medien
    Dielectric properties of solid polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 82-85 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Dielectric measurements were used to study dielectric constant and loss index of poly(p-chlorostyrene) and poly(m-chlorostyrene) over a temperature and frequency range. Relaxation processes are observed and mechanisms are proposed for crystalline structures. Axial rotation discussed here has been used to explain NMR data.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020114
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  • 15
    Digitale Medien
    Digitale Medien
    Abstracts of articles in this issue (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 94-96 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020202
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  • 16
    Digitale Medien
    Digitale Medien
    Masthead (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962) 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020201
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  • 17
    Digitale Medien
    Digitale Medien
    Transitions in polymers by nuclear magnetic resonanceSupported in part by the U.S. Atomic Energy Commission under Contract AT(30-1)-1858, and by a research grant (a2704) from the Public Health Service.¨ a study ¨ (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 86-91 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The principles of nuclear magnetic resonance, NMR, are briefly reviewed and the use of proton resonance for the study of segmental motion in solid high polymers is outlined. Studies of the temperature dependence of NMR spectra have shown that both completely amorphous and partially crystalline polymers exhibit NMR line narrowing processes at temperatures near the respective glass transition temperature due to increased segmental motion. The presence of small molecules, such as H2O or D2O in the polyamides, or a change of tacticity to a greater isotatic content, such as for poly(methyl methacrylate), is found to lower this line narrowing process on the temperature scale. Heating of polyethylene single crystal aggregates at temperatures somewhat below the melting point also leads to a decrease in temperature for this line narrowing process, presumeably due to the introduction of defects in the polymer crystals. In the ≤ 77°K to 200°K region numerous polymers having methyl and methyl group containing side chains are found to exhibit line width and second moment dispersions, attributed to methyl group rotation. If the methyl group is attached to a phenyl or ester side chain, methyl rotation takes place at 77° K and below.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020115
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  • 18
    Digitale Medien
    Digitale Medien
    The chemists becomes an apprentice of living nature (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 97-98 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020203
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  • 19
    Digitale Medien
    Digitale Medien
    Novel polymerization methods. Introduction (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 99-99 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: New methods, new structures leading to novel properties are presented in a collection of summaries. Areas discussed were: thiosemicarbazides, organometallic initiation of allene polymerization, poly(1,1,4,4,-tetramethyl-1,3-butadiene), emulsion polymerization of vinyl acetate with protein detergent solubilizing agents, alkali metal organic catalysts for stereospecific polymerization, anionic polymerization of dienes, rate constants in anionic polymerization, a series on polymerization by oxidative coupling with amine copper salt catalysts, block polymerization by vapor phase swelling, intra-intermolecular propagation in the solid-state and radiation induced polymerization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020204
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  • 20
    Digitale Medien
    Digitale Medien
    Polymerization of allen by organometallic initiation (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 101-102 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020206
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  • 21
    Digitale Medien
    Digitale Medien
    Poly (1,1,4,4-teramethyl-1, 3-butadiene) (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 102-103 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020207
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  • 22
    Digitale Medien
    Digitale Medien
    Preparation, properties and applications of polymeric thiosemicarbazidesFull description will be given in two papers entitled Polymeric Thiosemicarbazides I-Preparation and Properties of the Polymers and Some Simple Metallic Chelates and Polymeric Thiosemicarbazides II-Effect of Chemical Structure on Chelating Properties, Structure of Chelates, Both are in print in the Journal of Polymer Science. (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 100-101 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020205
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  • 23
    Digitale Medien
    Digitale Medien
    An emulsion polymerization of vinyl acetate employing protein-detergent solubilizing agents (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 104-105 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020208
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  • 24
    Digitale Medien
    Digitale Medien
    Sterospecific polymerization with alkali metal organic compounds (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 105-106 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020209
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  • 25
    Digitale Medien
    Digitale Medien
    Polymer association and chain structure in anionic polymerization of dienes (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 106-107 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 2 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020210
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  • 26
    Digitale Medien
    Digitale Medien
    Polymerization by oxidative coupling (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 108-109 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 2 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020212
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  • 27
    Digitale Medien
    Digitale Medien
    General considerations in the copper-amine catalyzed polymerization of 2,6-dimethylphenol (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 109-110 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 2 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020213
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  • 28
    Digitale Medien
    Digitale Medien
    Role of the copper-amine complexes in the initial step of the oxidative-coupling reaction (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 110-111 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020214
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  • 29
    Digitale Medien
    Digitale Medien
    Determination of absolute rate constants of copolymerization in anionic polymerization (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 107-107 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020211
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  • 30
    Digitale Medien
    Digitale Medien
    The kinetics and propagation mechanism of the oxidative polymerization of 2,6-xylenol (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 112-113 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020215
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  • 31
    Digitale Medien
    Digitale Medien
    Block copolymerization by vapor phase swelling (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 114-115 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020216
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  • 32
    Digitale Medien
    Digitale Medien
    Alternating intra-intermolecular propagation in the solid state (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 116-117 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020217
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  • 33
    Digitale Medien
    Digitale Medien
    High-pressure polymerization induced by gamma radiation (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 117-118 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020218
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  • 34
    Digitale Medien
    Digitale Medien
    Turbidimetric determination of the molecular weight distribution of linear polyethylene (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 119-121 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: α-Chloronaphthalene plus 30 weight percent of dimethylphthalate was the solvent with 0.5% ethyl cellulose as stabilizer. A polymer concentration of 0.0025% gave optimum results. A parameter S which is defined as the difference in temperature between 20% and 50% of the total reduction in phototube output is related linearly to a parameter of the Wesslau distribution.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020219
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  • 35
    Digitale Medien
    Digitale Medien
    Novel phosphorus containing polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 122-125 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Tris-hydroxymethylphosphine oxide (THPO) derived from commercially available tetrakishydroxy-methylphosphonium chloride (THPC), was studied for its flame retardant properties in reactions with carboxylic acids, anhydrides, diisocyanates, urea, phenol, acyl and aroyl halides. Then the monobenzylated derivative of THPO referred to as BHPO was studied, which is more stable and more reactive with difunctional molecules.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020220
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  • 36
    Digitale Medien
    Digitale Medien
    Prediction of long-term strength of reinforced plastics. Treatment of prot linear stress-rupture data (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 126-134 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Failing stresses of glass-reinforced plastics and of polystyrene were determined at room temperature. It was found that if an initial load of 40% of the short-term tensile strength of the material is imposed, good agreement exists between the results of accelerated tests and long-term, fixed load measurements for periods of 10,000 hours for the reinforced plastics.
    Zusätzliches Material: 12 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020221
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  • 37
    Digitale Medien
    Digitale Medien
    An introduction to the symposium on new methods of evaluating polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 139-139 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020223
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  • 38
    Digitale Medien
    Digitale Medien
    Olefin-substituted silicas as active fillers for polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 135-138 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Silicas have been synthesized of which the OH groups have been substituted for organic radicals with double bonds. The methanol, benzene and heptane sorption isotherms of the olefin-substituted silica specimens have been determined. It has been shown that the sorption of the vapors decreases with increasing substitution of the OH group by the organic radicals. The organosubstituted silicas were used as fillers of polymethylmethacrylate.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020222
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  • 39
    Digitale Medien
    Digitale Medien
    Interfacial properties of an amine-modified silane and its performed polymer at E-glass surfaces (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 326-330 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The adsorption of triethoxysilylpropylamine and its polymer onto 325 mesh E-glass from both aqueous and non-aqueous systems has been investigated. The amount adsorbed from an aqueous solution onto an E-glass surface corresponds to that obtained by others workers using different techniques. Solid preformed A-1100 polymer (II) was found to be unstable. Upon prolonged standing a basic gas, identified as ammonia, was liberated. Experimental results indicate that the amount adsorbed is related to the number of ethoxy groups on the molecule. However, the mechanism of silane attachment is still not completely understood.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020413
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  • 40
    Digitale Medien
    Digitale Medien
    Some further studies on the effect of glass-resin type and cure on the strength of laminates (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 332-336 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The technique of testing resin/glass laminates has been extended to include three alkali-containing glasses. NOL rings have been made by a direct filament drawing technique using an epoxide resin system. In each case the strength developed is less than with “E” glass.
    Zusätzliches Material: 4 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020415
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  • 41
    Digitale Medien
    Digitale Medien
    Comments on paper (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 353-353 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020418
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  • 42
    Digitale Medien
    Digitale Medien
    Investigations on the strength of alkali-containing glass fibers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 339-353 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The assertion was checked that alkali containing glass fibers, which evolve caustic bases when attacked by water, are, by this fact, responsible for the mechanical deterioration of reinforced plastics. Glass fibers of different chemical composition, when extracted with water, showed no correlation between amount of alkali in the glass and alkali leached out. Tensile strength of glass fibers is not a function of alkali content. Subjected to water, all types of glass fibers keep their strength except when boiled. This applies to fibers coated with coupling agent or in the native state. Deterioration of laminates under the influence of water seems to be primarily a function of the interface.
    Zusätzliches Material: 24 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020417
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  • 43
    Digitale Medien
    Digitale Medien
    High-speed testing… A new dimension in polymer evaluation (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 140-144 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A new universal tester is described, basically capable of testing samples in the 0.2 to 8000 inches/minute range. With servo controls a load-elongation curve is obtained which is a measure of material response independent of the machine. Load cell output is fed into the Y axis of an oscilloscope and displacement to the X axis. Useful where deviation from viscoelastic theory is suspected in time-temperature behaviour, for following impact behaviour and molecular decomposition.
    Zusätzliches Material: 11 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020224
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  • 44
    Digitale Medien
    Digitale Medien
    The use of microscopy to aid surface coating evaluation (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 152-156 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: By observing the surface and internal portions of a film with an electron microscope, information is obtained about the binder structure, pigment distribution and compatibility of the plasticizer. On a larger scale the light microscope can detect imperfections in vortex cells, which can be eliminated by proper solvent formulation, and crystalline bloom which is influenced by plasticizer and light polymer migration. When plasticizer exudes to the surface the durability of the coating is lowered in the two types of exposure, the difference of which can be determined by plasticizer migration.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020226
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  • 45
    Digitale Medien
    Digitale Medien
    Gas chromatography. A new tool for the analysis of plastics (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 145-151 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Identification was described by analysis of pyrolysis products, a method which is complicated by the variety of degradation products, but the decomposition products are fairly specific. The pyrolysis technique was used for a quantitative analysis of acrylate and maleate esters in polymers via a hydriodic acid hydrolysis technique. Because of the low volatility of the higher alkyl halides higher esters were saponified at elevated temperatures and the resultant alcohols were chromatographed. Then vinyl acetate was analyzed on the basis of the quantitative yield of acetic acid from polyvinyl acid pyrolysis.
    Zusätzliches Material: 14 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020225
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  • 46
    Digitale Medien
    Digitale Medien
    Oxyluminescence-a new tool for testing the stability of polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 161-163 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: It was observed that light is emitted upon polymer oxidation; intensity of light is proportional to oxygen concentration on the surface and presence of an antioxidant effects the emission of light. A linear relationship was found to exist between integrated light intensity and the number of carbonyl atoms formed. In addition concentration of antioxidants present and their synergistic effects can be measured by this method.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020228
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  • 47
    Digitale Medien
    Digitale Medien
    Free radical kinetics in irradiated ethyl cellulose as determined by electron spin resonance measurements (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 157-160 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Electron spin resonance techniques are used to investigate the structure and decay of radicals produced in irradiated ethyl cellulose. Approximately 99% of the radicals trapped at liquid nitrogen temperature appear to be - C2H4. radicals. These decay immeasurably fast at room temperature. The relatively stable doublet that remains is believed to be due to the CH—O radical. The kinetics of the doublet decay are studied as a function of temperature and dose. The data may be interpreted as resulting from simultaneous first and second order processes at lower doses and from a second order process at higher doses.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020227
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  • 48
    Digitale Medien
    Digitale Medien
    New organic resins and reinforced laminates for service to 300°C (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 216-221 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Demand for structural insulating materials for service in high temperature environments is widespread and the performance characteristics of special grades of silicone or phenolic-glass laminates at temperatures up to 250°C have been well documented. A new family of polymers, completely aromatic in structure, except for the amido coupling linkage, now shows promise of giving excellent performance at temperatures to at least 300°C in air. Comparative data concerning the retention of mechanical and electrical properties of such laminates after aging at the higher temperature is provided.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020308
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  • 49
    Digitale Medien
    Digitale Medien
    Surface conductance, syneresis and adhesion (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 213-215 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Electric surface conductivity χ of purified polyethylene wax in nearly saturated water vapor was about 8 × 10-13 mho and in vapor of 0.5% aqueous NH3 about 17 × 10-12 mho. When 0.1% oleic acid (OA) was added to the wax, χ in the 0.5% NH3 vapor was not markedly changed but it was greater at 0.2% and higher concentrations; at 1% OA it was 2 × 10-10 mho. These results show that surface conductance (a) may be “developed” by vapors, (b) can be used to detect the onset of syneresis, and (c) is the bulk conductance of the surface film, and, further, that in the polyethylene-OA system syneresis occurs between 0.1% and 0.2% OA as was deduced from the strength of adhesive joints made with mixtures of OA and polyethylene. Thus, the results confirm the “weak boundary layer” theory of adhesion.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020307
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  • 50
    Digitale Medien
    Digitale Medien
    Some effects of molecular weight distribution on the melt rheology of high density polyethylene (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 222-226 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Using a high shear rate capillary viscometer, the melt viscosities of a series of high density linear polyethylenes ranging in weight average molecular weight from 70,000 to 160,000 have been measured from shear rates of 2 to 200 sec-1 and from 190° to 240°C. The data, corrected for elastic end effects are described by an empirical relationship except for the temperature term which is fitted to the Williams-Landel-Ferry equation. Over the range measured the viscosity is given approximately by a power law in relation to shear rate with an exponent dependent upon molecular weight.The effects of distribution were examined by measuring the viscosity-shear rate relationships for not only the above series, which varied in Mw/Mn from 23 to 10, but also for blends of polyethylenes of varying molecular weights or of fractions, and other polyethylenes obtained by removal of the high molecular weight tail. In general, the broader the distribution, the more sensitive is the viscosity to the rate of shear.The end correction, a measure of the elastic energy, does not vary much with shear stress or temperature in the case of high density polyethylene.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020309
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  • 51
    Digitale Medien
    Digitale Medien
    Studies of polycarbonate plasticization (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 227-230 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The plasticization by dibutyl phthalate, camphor and butyl sterate of polycarbonates prepared by phosgenation of 2,2-bis-(4′-hydroxyphenyl) propane was investigated. Thermomechanical and dynamometric studies of the plasticized polycarbonates show that both intrapacket and interpacket plasticization is possible as for cellulose. In the first case, the lowering of the glassy transition point of polycarbonate films is strictly proportional to the logarithm of the concentration of added plasticizer (dibutylphthalate, camphor). In the second case, after a small drop in the transition point, the latter remains unchanged over a broad range of plasticizer concentrations (butylsterate). A similar relation was observed with respect to the elasticity modulus of the films.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020310
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  • 52
    Digitale Medien
    Digitale Medien
    Photoelastic phenomena in plastics during impact (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 237-242 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The study of strain patterns in deformed, transparent plastic placed between crossed Polaroids can shed considerable light on the responses of these plastics to stress. This article describes a study of the differing responses of three thermoplastics of varying degrees of toughness to the notched Izod impact test. The growth and waning of the strain patterns during impact are followed by means of high-speed cinematography; interpretation of the phenomena thus observed is aided by thin section microscopy of partially deformed specimens.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020312
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  • 53
    Digitale Medien
    Digitale Medien
    Physical properties of ethylene-1-olefin copolymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 285-293 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: With the advent of the newer catalyst systems it is now possible to prepare copolymers of ethylene and 1-olefins possessing useful physical properties. A wide range of physical properties is readily achieved through variations in the concentration and type of 1-olefin used as the comonomer. The era of tailor-making ethylene type polymers to fit any specification regarding stiffness, strength and melt flow properties is now at hand. A comparison of physical properties of ethylene/1-olefin copolymers with those of the corresponding polyethylene/poly (1-olefin) blends indicates true copolymers are formed.Decrease in crystallinity of copolymers is due to the number of branch sites introduced into the main chain rather than to the bulk of the comonomer or the length of side chain.
    Zusätzliches Material: 14 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020405
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  • 54
    Digitale Medien
    Digitale Medien
    The stereospecific homogeneous polymerization of vinyl chloride (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 294-297 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Polymerization of the monomer was investigated in organic solvents such as nitro-compounds, amines, amides, nitriles, ethers, esters, ketones, aldehydes, acids, anhydrides, and some heterocyclic compounds. Crystalline polyvinylchloride was produced in aliphatic aldehyde media at temperatures ranging from 0° to 60°C and highly crystalline polyvinylchloride was synthesized in the presence of preliminarily oxidized butyric aldehyde. The electron diffraction picture of the non-oriented specimen of the polymer exhibited 19 distinct reflexes.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020406
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  • 55
    Digitale Medien
    Digitale Medien
    Polymer analysis, using gas chromatographic separation of pyrolyzates on a capacity column (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 298-301 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: An analytical method for polymer mixtures has been developed, using gas chromatographic separation of pyrolysis products on a capillary column. This technique uses one set of column conditions for the analysis of a number of polymers, including those from methyl methacrylate, ethyl acrylate, 2-ethylhexyl acrylate, butadiene, acrylonitrile, vinyl acetate, and styrene, either as homopolymers on as copolymers of two or more components.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020407
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  • 56
    Digitale Medien
    Digitale Medien
    Use of a new torsion pendulum for polypropylene property evaluation (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 302-306 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A new recording system for a torsion pendulum is described. By its use data on the internal loss and shear modulus of a polymeric material can be obtained quickly and easily in digital form, rather, than the more usual graphical form. The system is simple and easy to operate, is rugged and is inexpensive relative to other systems. The precision available is excellent. An application of the instrument in the determination of the crystallinity of polypropylene is described.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020408
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  • 57
    Digitale Medien
    Digitale Medien
    Comments on the paper (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 330-331 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020414
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  • 58
    Digitale Medien
    Digitale Medien
    Comments on the paper (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 336-338 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020416
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  • 59
    Digitale Medien
    Digitale Medien
    Abstracts of articles in this issue (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 262-264 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020402
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  • 60
    Digitale Medien
    Digitale Medien
    Antioxidant efficiency versus structure (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 250-259 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Antioxidant efficiency versus structure was investigated using rate of carbonyl formation at 110 and 170°C of a 20 mil plaque of polyethylene containing 0.01 weight % additive. This study indicates that the following are important in phenolic and amine antioxidants: 1The number of H. atoms available: Antioxidant efficiency is increased by adding a second hydroxyl group as well as by introducing a methylene bridge.2The number and location of substituents: Alkyl substitution of the phenolic ring is an important factor in stabilization. Groups which decrease the strength of the NH bond increase the effectiveness of amine antioxidants.3Solubility: The less compatible the antioxidant, the poorer its stabilizing action.4Volatility: Many stabilizers are ineffective at high temperature because of volatilization.5Bridge between rings: A sulfide bridge can be equivalently substituted for a methylene bridge.6The need for stabilization of the radical formed after removal of H: This stabilization could occur via; Hydrogen bonded chelates, resonance and steric hindrance.
    Zusätzliches Material: 12 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020314
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  • 61
    Digitale Medien
    Digitale Medien
    Experimental measurement of roll-separating forces during milling of plastics (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 265-272 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A “milling viscosity” test has been developed which measures the roll-separating forces encountered during milling of experimental compound formulations on a carefully set-up and controlled laboratory two-roll mill. A small 8-in. x 16-in. laboratory mill was equipped with force-measuring dynamometers and used to explore the actions of different vinyl-resin compounds. The instrument has proven to be useful in developing thermoplastic materials, in providing an index for predicting the tendency of a material to deflect calender rolls, and as an aid in estimating the forces which may be encountered in full-size equipment.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020403
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  • 62
    Digitale Medien
    Digitale Medien
    The relative stability of cation impurities and silica fiber surfaces (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 354-362 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The effects of heat soaking and leaching with HCl at pH 6.0, 5.0 and 4.0 of five fiber glass formulations are investigated. Silane coupling agents are applied and acid titration is used to determine the specific ions reacting and the approximate quantity reacted. Fiber glass surfaces are largely uncovered, and bare glass reactivity can be determined if a non-ionic alkoxy silane is applied. While aqueous applications of a silane covers only a proportion of the silica sites, a vapor phase application covers a proportion of all reactive cation sites. With nonporous silica a large propotion of the amphoteric and alkali impurities are on the surface.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020419
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  • 63
    Digitale Medien
    Digitale Medien
    Comments on the paper (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 366-367 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020421
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  • 64
    Digitale Medien
    Digitale Medien
    The bonding of fillers to thermosetting resins (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 363-366 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Use of silica was emphasized since it is available in high purity, and since it is a major ingredient in all glass fibers. Other fillers employed include the aluminas, silicates, glass, and simple salts. When using a hydrocarbon type thermosetting resin and no chemical coupling agent, all fillers were substantially equivalent from the standpoint of strength of moldings. When using a vinyl silanol type coupling agent in the mix, there was a vast difference, however. Silica and alumina are strongly coupled via the silanol linkage of the silane, the glasses and complex silicates such as clays are intermediate, and simple salts such as carbonates and sulfates do not respond at all.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020420
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  • 65
    Digitale Medien
    Digitale Medien
    Evaluation of brittle failures of polyethylene by subjection to biaxial stress (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 170-173 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: First and second order effects of density and melt index were found to be significant with stress level a significant factor in determining failure time using Maltese Cross shaped specimens. Stress and temperature had the greater influence on failure. Influence of temperature-viscosity interaction is of concern along with transition in the mode of failure from ductile to brittle type. Reduction in the effect of melt index with increasing density is in accord with new theories on polyethylene crystal structure. It was also shown that higher modulus materials fail more rapidly.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020230
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  • 66
    Digitale Medien
    Digitale Medien
    Chromatographic fractionation of polyolefins (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 164-169 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The results compare favorably with those obtained by careful refractionation of fractions isolated by the precipitation method. A convenient parameter, U, related to the breadth of the molecular weight distribution can be calculated from the slope of the log-probability plot. When the plot is linear, U, is numerically equal to the ratio Mw/Mn. Values of U obtained for a number of commercial and experimental polypropylenes indicate that, with a given type of polypropylene, the breadth of the distribution increases as the average molecular weight of the sample increases, and that wide differences in distribution can be expected from polymers made by different processes.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020229
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  • 67
    Digitale Medien
    Digitale Medien
    An evaluation of polypropylene by dynamic mechanical tests (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 174-177 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The loss factor ratio is dependent upon temperature and the rate of change of mechanical load or frequency of the oscillatory loading. The limit of linear viscoelastic response is another variable which occurs at the break in the stress-strain curve. If storage modulus varies slightly, with magnitude of stress or strain, the data is considered linear viscoelastic. The only true test is in the limit of zero strain and independent modulus. Polypropylene's dynamic properties are most dependent on test temperature. The loss factor peak which can be controlled by temperature and pressure history during crystallization is an indication of the ductile-brittle transition point.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020231
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  • 68
    Digitale Medien
    Digitale Medien
    Masthead (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962) 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020301
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  • 69
    Digitale Medien
    Digitale Medien
    Abstracts of articles in this issue (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 182-184 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020302
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  • 70
    Digitale Medien
    Digitale Medien
    Methods of studying heterophase conditions in resinous materials (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 185-192 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The paper discusses polymer materials and synthetic resins as multiphase or heterophase materials. They contain three-dimensional, insoluble, non-volatile phase material, as well as soluble and volatile material, which can act as “sweller” for the insoluble phase. As long as the insoluble phase is in a relatively low concentration, the resins are glassy, fusible without decomposition, and thermoplastic. They are like “frozen” solutions of the various phases. As the concentration of the insoluble phase increases, the resins turn insoluble. These gelling, thermosetting materials can be dispersed in strong “sweller fluids”; and from these dispersions, the three-dimensional material can be precipitated and further investigated. Methods are being discussed.
    Zusätzliches Material: 13 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020303
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  • 71
    Digitale Medien
    Digitale Medien
    Identification of the urethane-epoxy reaction product (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 193-201 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The probable molecular structure resulting from a reaction of equal parts of a Bisphenol A/Epichlorohydrin epoxy and a Tolylene Diisocyanate Prepolymer with a selected diamine has been identified by using spectrometry. This identification presents additional opportunities for attaching other complex molecules to either of the basic resins. Not only can this technique lead to an interesting family of hybrid plastics, but it is another step toward designing specific molecules for specific applications.
    Zusätzliches Material: 17 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020304
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  • 72
    Digitale Medien
    Digitale Medien
    Pyrolysis of phenolic polymers (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 202-206 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The technique of thermogravimetry was used to investigate the thermal decomposition characteristics of several cross-linked phenolic polymers, which included regular and chlorinated phenolics and phenolics copolymerized with silane, nylon and phenol-furfural resins. These polymers were found to be more stable thermally than the usual polyester and epoxide polymers, as evidenced by slower rates of decomposition and lower ultimate percentage weight losses. Temperatures at which 50% of ultimate percentage weight losses occurred ranged from 395°C for a phenolic copolymerized with a silane to 505°C for a chlorinated phenolic copolymerized with a silane. Chemical modification of the regular phenolic cross-linked structure caused a decrease in thermal stability.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020305
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  • 73
    Digitale Medien
    Digitale Medien
    Dynamic mechanical properties of epoxy resins (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 207-212 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Although dynamic mechanical properties of thermoplastic polymers have been studied in great detail and much has been learned about their structure, little has been done in the field of thermosetting resins. The present study involves the use of dynamic methods for determining certain salient features about epoxy resins. A torsion pendulum operating in the range of one cycle per second was used to measure the properties of various epoxy systems. The instrument enabled rapid determination of both internal friction and shear moduli.Two transition peaks in the dynamic loss tangent were observed; one occurring at -60°C, the other at 165°C when a conventional epoxy resin was cured with m-phenylenediamine. The low temperature peak was effectively demonstrated as due to the glycidyl ether portion of the cured resin system. The major peak or glass transition temperature could be varied in accord with the substituents on the central carbon bridge of the bisphenol portion of the molecule and to a lesser extent by the degree of cross-linking.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020306
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  • 74
    Digitale Medien
    Digitale Medien
    The analysis of polymers for moisture and volatiles (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 231-236 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: An analytical method for the quantitative determination of the moisture and volatile content of polymeric materials is described. The method has been applied to polycarbonates, urethane elastomers and polyesters. It has been found particularly valuable for moisture determinations of polymers which have limited solubility in most common solvents and for polymers whose moisture content is in the range of 0.001%-0.01%. The moisture is expelled from the sample by means of heating under vacuum and collected in a cold trap. The vapor pressure of the water is then measured and correlated with the amount present in the sample. Volatiles, if present, can be determined by difference after removal of the water. Commercially obtainable equipment is employed.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020311
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  • 75
    Digitale Medien
    Digitale Medien
    Cellular materials-composition, cell-size, thermal conductivity (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 243-249 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Composition by weight and volume of a cellular material and how it changes with density is shown in the form of equations. The equations are used to derive the basic relationship between cell size, cell wall thickness, density of cellular material and density of solid and gaseous components. A simplified equation is presented for thermal conductivity of low density cellular materials. It is used to illustrate the contribution of the solid and gaseous components in cellular polystyrene and urethane at various densities. The contribution of factors other than conduction to observed thermal conductivity of cellular polystyrene is compared to that reported for fiber glass insulation. The observed effect of cell size on conductivity is presented and compared to the calculated effect, based on an equation in the literature.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020313
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  • 76
    Digitale Medien
    Digitale Medien
    Masthead (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962) 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020401
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  • 77
    Digitale Medien
    Digitale Medien
    Influence of normal stress on creep in tension and compression of polyethylene and rigid polyvinyl chloride copolymer (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 273-284 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: New apparatus suitable for compression creep tests of slender specimens is described. The apparatus is designed to prevent buckling and to introduce a minimum of friction. Results are reported for tension and compression creep of polyethylene and annealed, unplasticized polyvinyl chloride copolymer at 75 deg F and 50 per cent relative humidity. The stress, σ, strain ε, time t data from these tests were found to be describable with reasonable accuracy by the equation \documentclass{article}\pagestyle{empty}\begin{document}$$ \varepsilon = \varepsilon' \circ {\rm sinh }\sigma {\rm /}\sigma _\varepsilon + {\rm m't}^{\rm n} {\rm sinh }\sigma {\rm /}\sigma {\rm m} $$\end{document}where εm′, m′, σε and σm are material constants.The results for polyethylene show that the creep in tension and compression were virtually the same. Creep in tension was similar but larger than in compression for polyvinyl chloride.
    Zusätzliches Material: 12 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020404
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  • 78
    Digitale Medien
    Digitale Medien
    A compound pendulum for dynamic viscoelastic property measurements (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 307-312 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: A compound pendulum system has been developed for the measurement and study of the modulus of elasticity and internal damping properties of a viscoelastic specimen through a range of temperatures.An analysis of the apparatus and the essential describing equations are presented. Test results for several materials are presented. In the region of the heat distortion temperature many materials exhibit a sharp peak in their damping characteristics. The modulus of elasticity drops rapidly in this region. Modulus of elasticity results obtained compare favorably with static testing machine data. The compound pendulum system described provides a simple technique for these physical property determinations continuously over a range of temperatures.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020409
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  • 79
    Digitale Medien
    Digitale Medien
    Introduction to interface symposium. The glass-resin interface seminar (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 313-313 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020410
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  • 80
    Digitale Medien
    Digitale Medien
    The nature, origin and effects of internal stresses in reinforced plastic laminates (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 314-319 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: There is a tension set up between the resin and the glass upon curing. A simple experiment has been devised to measure this tension and to note how it changes with time and temperature. It is found that it does not diminish with time and that it is linearly dependent on the highest temperature to which the resin has been brought during or after cure. NOL-type rings were made with the same resin systems and subjected to different cure temperature so that the effect of the different shrinkage tensions on the physical properties be examined.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020411
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  • 81
    Digitale Medien
    Digitale Medien
    Surface effects of various environments and of thermosetting resins on the strength of glass (1962)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 2 (1962), S. 321-325 
    Details
    ISSN: 0032-3888
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Glass rods were etched to reduce their surface flaws and hence to increase their flexural strength. They were then subjected to various environments to see how these would affect their strength and hence their surface. It appeared that no liquid environments affected their strength. This included boiling water. The effect of curing resin against the surface was also shown as was subsequent boiling: Shell Epon 828 appeared to increase the strength of the rods, but only when there was a surface treatment of Union Carbide A-1100 or Owens-Corning 801.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pen.760020412
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  • 82
    Digitale Medien
    Digitale Medien
    An experimental study of three component gas diffusion (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 38-41 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Equimolal countercurrent diffusions runs were made in a two bulb diffusion cell with the system hydrogen, nitrogen, and carbon dioxide. The initial bulb compositions were chosen so that various types of ternary interactions occurred. These interactions were well-described by the Maxwell-Stefan equations. The average deviation of the experimental mole fractions for all runs from those predicted by the Maxwell-Stefan equations was 0.45 mole %.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080112
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  • 83
    Digitale Medien
    Digitale Medien
    A note on latent heat transport in nucleate boiling (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 63-65 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A simple one-dimensional transport calculation is made which indicates that latent heat transport, by simultaneous evaporation and condensation at different portions of the bubble surfaces, can account for the major portion of the total heat flux in the neighborhood of the departure from subcooled nucleate boiling (burnout). This differs from the previously held view that the stirring action of the bubbles accounted for most of the heat flow in subcooled nucleate boiling. Other evidence is discussed which favors the latent heat transport theory.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080117
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  • 84
    Digitale Medien
    Digitale Medien
    Kinetics of reduction of iron oxide with carbon monoxide and hydrogen (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 48-52 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: This investigation was undertaken to determine the rate controlling step in the reduction of iron oxides with hydrogen and carbon monoxide. For the reduction of porous hematite pellets, and bars it was found that the reduction rate is controlled by the counterdiffusion of reactant gas and product gas between the reaction zone and the main gas stream.The reduction specimens were spheres ranging in size from 1.5- to 4.4-cm. diameter and 5.1- by 7.6-cm. bars either 0.69 or 1.24 cm. thick. They were prepared from electrolytic iron powder, partially oxidized in a rotary kiln. The final oxidation of the specimens to hematite was accomplished by firing them at 1,149°C. in an oxidizing atmosphere. The bulk density was 3.5 g./cc. The specific surface area was 0.08 sq.m./g. and the void faction was 0.31. The oxide specimens were reduced in streams of pure hydrogen or carbon monoxide at temperatures between 700° and 1,200°C. The reduction was followed by measuring the sample weight during the reaction. Reduction rates were studied at system pressures of 1 and 2 at.The samples reduced step by step, to magnetite, to wüstite, and finally to iron. A shell of reduction, clearly visible in sections of partially reduced specimens, moved concentrically into the core of the samples. Ahead of the receding interface the specimens were known to be pervious to the reactant gases. This led to the conclusion that the gas composition at the interface was in equilibrium with the oxide phases present.Except for the removal of the last portions of oxygen at the lower reduction temperatures, the course of the reduction followed Fick's first law of diffusion. Values of the diffusion co-efficients, determined from the experimental data, were in close agreement with values predicted from empirical equations. Varying the total pressure of the system had no effect on the rate of reduction, which is consistent with the equations developed from Fick's law for the diffusion-controlled reaction under investigation.It is speculated that the retarding of the reduction reaction at the lower reduction temperatures is due to the entrapment of oxide inside shells of iron, which are impervious to the reducing gas. Reduction of the trapped oxide then proceeds by solid state diffusion in a manner proposed by Edström (6).
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080114
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  • 85
    Digitale Medien
    Digitale Medien
    An experimental study of liquid-phase turbulent diffusion: Part I. Fluid mechanical data (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 103-108 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Results from an investigation of the fully developed turbulent wake of a circular cylinder are presented. The study was conducted in the liquid phase, in the controlled flow field of a water tunnel. A technique was developed for measuring the intensity of turbulence in water. The decay of turbulence intensity downstream from a series of fine-mesh wire screens was measured and compared with aerodynamic decay laws. Profiles of the turbulence intensity in the cylinder wake were also obtained. This paper is Part I of a study of liquid phase turbulent mass transfer in the wake of a cylinder. The mass transfer results are reported in Part II.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080124
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  • 86
    Digitale Medien
    Digitale Medien
    On the use of the activity driving froce in rate equations (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 133-141 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080130
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  • 87
    Digitale Medien
    Digitale Medien
    Letter to the editor (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 135-142 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080132
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  • 88
    Digitale Medien
    Digitale Medien
    Chemical engineering progress symposium series abstracts (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 138-144 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The Chemical Engineering Progress Symposium Series is composed of papers on specific subjects conveniently bound in individual books, which are published at intervals. The books are 8 1/2 by 11 inches, paper covered, and cost $3.50 to members, $15.00 to nonmembers for “Petrochemicals and Petroleum Refining,” No. 34. They may be ordered from the Secretary's Office, the American Institute of Chemical Engineers, 345 East 47 Street, New York 17, New York.The A.I.Ch.E. Journal will publish, from time to time, abstracts of the articles appearing in the Symposium Series volumes. Recently published volumes are abstracted below.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080135
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  • 89
    Digitale Medien
    Digitale Medien
    Prediction of vapor-liquid equilibria of binary systems: Part II. Hydrocarbon systems (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 163-166 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: This article proposes an empirical method for predicting the vapor-liquid equilibrium data on binary hydrocarbon systems without any experimental data on the mixtures. The method was tested for twenty-six systems under atmospheric pressure and three isothermal systems. The predicted results are in excellent agreement with experimental data.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080207
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  • 90
    Digitale Medien
    Digitale Medien
    The optimal design of chemical reactors: A study in dynamic programming, Rutherford Aris, Academic Press, Inc., New York (1961). 191 pages. $7.00 (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 139-140 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080104
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  • 91
    Digitale Medien
    Digitale Medien
    The photochlorination of chloroform in continuous flow systems (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 193-200 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Data on the vapor phase photochlorination of chloroform in flow reactors are interpreted on the basis of reaction mechanisms presented in the literature. In order to estimate the rates of light absorption it is also necessary to interpret the rate data obtained for the uranyl sulfateoxalic acid reaction.The chlorination results are represented quite well by a mechanism in which the most important termination step is a termolecular reaction between trichloromethyl radicals and chlorine. Deviations from this model are observed as the flow of reactants becomes turbulent and as the light intensity increases. The observed decrease in reaction rate under such conditions is attributed to the increased significance of a second termination step, the unimolecular deactivation of chlorine radicals at the reactor wall.
    Zusätzliches Material: 9 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080213
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  • 92
    Digitale Medien
    Digitale Medien
    Fundamental aspects of rotating disk contactor performance (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 252-261 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The principles used in analyzing the performance of rotating disk contactor liquid extraction columns are discussed. The behavior of a swarm of drops in the rotating field is found to be adequately represented in most respects by single-drop dynamics, which leads to tested relations for countercurrent capacity, limiting drop holdup, axial diffusion of the continuous and dispersed phases, and point mass transfer coefficients that are independent of column size effects.
    Zusätzliches Material: 19 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080225
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  • 93
    Digitale Medien
    Digitale Medien
    Characteristics of thermistors when used as power sources of known temperature (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 273-274 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080229
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  • 94
    Digitale Medien
    Digitale Medien
    Isothermal diffusion with a variable density (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 278-279 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080232
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  • 95
    Digitale Medien
    Digitale Medien
    Chemical engineering progress symposium series abstracts (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 285-285 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The Chemical Engineering Progress Symposium Series is composed of papers on specific subjects conveniently bound in individual books, which are published at intervals. The books are 8 1/2 by 11 inches, paper covered, and cost $3.50 to members, $15.00 to nonmembers for “Pollution and Environmental Health,”No. 35. They may be ordered from the Secretary's Office, the American Institute of Chemical Engineers, 345 East 47 Street, New York 17, New York.The A.I.Ch.E. Journal will publish, from time to time, abstracts of the articles appearing in the Symposium Series volumes. Recently published volumes are abstracted below.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080237
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  • 96
    Digitale Medien
    Digitale Medien
    The effect of column length on separation in thermogravitational thermal diffusion columns (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 166-170 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A series of experiments was designed to test the phenomenological theory of thermogravitational thermal diffusion columns by obtaining data on the steady state separation and approach to equilibrium in a batch column as a function of column length. Data were obtained on the separation of an equimolar n-heptane-benzene solution at five different values of column length varying from 14.5 in. to 6 ft. All measurements were made in one concentric cylinder column in which the effective length was varied by controlling the liquid level in the annulus. Helium gas was used to displace the air in the annulus above the liquid in order to provide even temperature distribution throughout the column. The data were found to substantiate the effect of length predicted by application of the phenomenological theory and to be in very good agreement with other aspects of the theory.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080208
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  • 97
    Digitale Medien
    Digitale Medien
    Design and evaluation of a new body for falling cylinder viscometers (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 190-193 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A new body with stabilizers removed from the cylindrical section was designed for falling cylinder viscometers. Experimental data to evaluate the new body were obtained with gases and liquids at varying temperatures and pressures.Experimental results showed improved agreement with a theoretical model that assumes laminar flow friction along the cylindrical portion of the body and negligible additional frictional effects. Effects of temperature and pressure were accurately predicted by this theoretical model. The data were correlated on an improved viscometer plot.The advantage of the new body design was a negligible frictional effect of the stabilizers. The entrance-exit frictional effect was evaluated from the experimental data and correlated on a friction factor plot. Fluid flow in the annulus remained laminar throughout this study. The results of this investigation allow an improved prediction of the falling-cylinder viscometer constant.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080212
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  • 98
    Digitale Medien
    Digitale Medien
    A unified vectorial approach to difference point methods in stagewise operations (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 214-216 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A fundamental unified approach from vectorial considerations is presented from which the usual rectangular and triangular difference point methods are derived as special cases. The approach is then extended to yield other difference point methods including some of higher order. Results are applicable to blending, distillation, extractio, foam fractionation, and other operations.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080217
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  • 99
    Digitale Medien
    Digitale Medien
    Coalescence frequencies in agitated liquid-liquid systems (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 233-239 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: An experimental technique is described for estimating the coalescence frequency of droplets in an agitated liquid-liquid system. Results are presented for dilute aqueous dispersions in toluene. Quantitative estimates of the coalescence frequency are based upon a simple model proposed to describe the coalescence process. The coalescence frequency is shown to increase markedly with increase in impeller speed and to a lesser extent with increase in the dispersed-phase volume.
    Zusätzliches Material: 8 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080221
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  • 100
    Digitale Medien
    Digitale Medien
    The kinetics of ion exclusion (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 248-252 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: As a preliminary to detailed kinetic analysis of ion-exclusion operations a study of the rate of absorption of glycerol from dilute aqueous solution has been made in small fixed beds of ion exchange resin. The resin used was Amberlite IR-120 (hydrogen form) ranging in size from 0.210 to 1.190 mm., as determined by dry screening. Solution flow rates were varied from 0.45 to 22.20 ml./(sq.cm.min.).Analysis of this problem has shown that the operation of such a process may be described by a simple linear rate equation and the usual transient column material balance relations. It was found that experimental breakthrough data could be well matched with curves predicted by such analysis. Furthermore, three characteristic regions of operation are apparent in which different rate controlling processes may be operating.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690080224
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