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  • Chemistry  (33)
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  • 1
    Digitale Medien
    Digitale Medien
    Poly-3-(2,5-diacetoxyphenyl)propylene oxide (1961)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 5 (1961), S. S2 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    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/app.1961.070051320
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  • 2
    Digitale Medien
    Digitale Medien
    Polyvinyl nicotinate (1962)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 6 (1962), S. S4 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    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/app.1962.070061917
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  • 3
    Digitale Medien
    Digitale Medien
    Dichotomies in the viscosity stability of polyacrylamide solutions. II (1972)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 16 (1972), S. 2709-2713 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    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/app.1972.070161023
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  • 4
    Digitale Medien
    Digitale Medien
    Effect of aluminum chloride on a radical copolymerization (1952)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 9 (1952), S. 588-592 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1952.120090618
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  • 5
    Digitale Medien
    Digitale Medien
    Polyvinyl trifluoroacetate (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 22 (1956), S. 291-302 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: Vinyl trifluoroacetate and its homopolymer have been investigated. In copolymerization, the monomer behaves normally, having a Q similar to that of vinyl acetate and a positive e value resulting from fluorine substitution. Unlike the vinyl acetate system, polyvinyl trifluoroacetate is insoluble in its monomer and polymerization leads to no increase in DP with conversion. It is suspected that substitution of CH3 by CF3 has greatly reduced chain transfer and branching. Infrared spectra of vinyl trifluoroacetate and its polymer are presented and solubilities of the latter reported. Polyvinyl trifluoroacetate is very unstable to the hydrolytic loss of the perfluoro acid. The fluoropolymer is much harder than polyvinyl acetate and higher values are obtained for its softening point and apparent second-order transition temperature. Although no difference can be found by infrared measurements between authentic polyvinyl alcohol and that obtained by hydrolysis of the fluoropolymer, a large difference in their water solubilities exists. Polyvinyl trifluoroacetate is readily oriented by stretching and some polarized infrared absorption data are presented. X-ray diffraction photographs of stretched specimens indicate moderate order and considerable orientation. These results are surprising when considered in the light of the general concepts regarding polymer structure and crystallinity. Extremely highly ordered and highly birefringent polyvinyl alcohol can be obtained readily from stretched polyvinyl trifluoroacetate by conversion of the latter with gaseous ammonia.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1956.1202210111
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  • 6
    Digitale Medien
    Digitale Medien
    The decomposition of benzoyl peroxide in polymers. III (1961)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 55 (1961), S. 33-40 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: The decomposition of benzoyl peroxide in polystyrene in the presence of air has been studied spectrophotometrically over an expanded (55 to 98°C.) temperature range. Rates of decomposition of benzoyl peroxide in polyvinyl chloride films are also presented. Peroxide decomposition in both polymers obeys first-order kinetics and the Ea for decomposition appears to change at or near the second-order transition temperature of the polymers. Rates of peroxide decomposition are lower and energies of activation are higher in polyvinyl chloride than in polystyrene.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1961.1205516103
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  • 7
    Digitale Medien
    Digitale Medien
    Catalysis of the dechlorination by zinc (1950)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 5 (1950), S. 515-516 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1950.120050410
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  • 8
    Digitale Medien
    Digitale Medien
    Preparation and properties of poly-p-xylyleneThis work was sponsored by the Signal Corps, Department of the Army. (1954)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 13 (1954), S. 137-156 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: The preparation of poly-p-xylylene, , in 24-26% yield, by pyrolysis of p-xylene, is described in detail. The nature and amount of by-products of the pyrolysis were determined. The physical appearance and the following properties and reactions of the polymer are described: x-ray diffraction, crystallinity, optical constants, infrared absorption spectrum, degradation by autoxidation in solvents and by pyrolysis, dielectric constant and loss, sulfonation and chlorination. The significance of this data is discussed relative to an understanding of the mode of formation and the structure of the polymer.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1954.120136813
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  • 9
    Digitale Medien
    Digitale Medien
    The decomposition of benzoyl peroxide in polystyrene (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 39 (1959), S. 493-499 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: The rate of decomposition of benzoyl peroxide in polystyrene has been measured at 70.9, 80.1, and 89.5°C. The kinetics are strictly first order. There is no dependence of rate on concentration, which indicates that radical-induced decomposition is absent. At 70-80°C., the Arrhenius relationship is k = 1.39 × 1017e-35,700/RT and at 80-90°C., k = 2.67 × 1013e-29700/RT. Above 80°C., the apparent second-order transition temperature of polystyrene, the rates of decomposition correspond fairly closely to the rates of spontaneous decomposition of benzoyl peroxide in benzene. Below 80°C., the rates of decomposition of benzoyl peroxide in polystyrene are considerably smaller than those in benzene. Two possible explanations of this behavior are presented.
    Zusätzliches Material: 3 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1959.1203913541
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  • 10
    Digitale Medien
    Digitale Medien
    Reactivity ratios of some monomer pairsThis work was carried out in part under Army Chemical Corps contract No. DA-18-108-CML-689. (1952)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 9 (1952), S. 309-314 
    Details
    ISSN: 0022-3832
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: To continue the study of the effect of structure on reactivity, an experimental investigation of the free radical copolymerization behavior of eight monomer pairs has been made. The monomer pairs include: vinyl acetate-methyl vinyl ketone; vinyl acetate-1,3-acetoxybutadiene; acrylonitrile-1,3-acetoxybutadiene; methylacrolein-acrylonitrile; vinylsulfonic acid-methyl methacrylate; 2,5-dichlorostyrene-2,5-dimethylstyrene; vinyl acetate-fumaryl chloride; and styrene-fumaryl chloride.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/pol.1952.120090403
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