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  • 1990-1994  (2)
  • 1965-1969  (3)
  • Polymer and Materials Science  (4)
  • 29.30.Kv  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Shape coexistence and strong shape changes in very neutron deficient platinum isotopes (1990)
    Springer
    The European physical journal 337 (1990), S. 283-292 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Ev ; 29.30.Kv ; 27.70.+q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract High spin states of175, 176Pt have been populated in144Sm(35Cl,pxn) reactions at beam energies of 175–185 MeV. In-beamγ-ray spectroscopic techniques using the ESSA30 spectrometer array were adopted. Levels up to spin 26 in176Pt and tentatively up to spin 45/2 in175Pt have been identified. The data are interpreted within the framework of Cranked Shell Model calculations using the deformed Woods-Saxon potential and including monopole pairing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289694
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Comparative crystal morphology study using WAXS and CDT techniques (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 42 (1991), S. 2703-2711 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Changes brought about in the crystal morphology of drawn (oriented) PET fibers following both heat and liquid treatments were studied using wide angle X-rays and critical dissolution time techniques. The results obtained showed that the two techniques were sensitive to different but closely related morphological properties of the polymer, the former being sensitive to the apparent degree of the crystalline content, and the latter, a measure of the size of such crystallites that were produced.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1991.070421008
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Anionic copolymerization of styrene and butadieneIssued as N.R.C. No. 8413. (1965)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 85 (1965), S. 273-279 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurde der Versuch unternommen, das ungewöhnliche kinetische Verhalten der durch Butyllithium in Kohlenwasserstoffen als Lösungsmittel ausgelösten Copolymerisation von Butadien und Styrol experimentell zu analysieren. Dabei wurde festgestellt, daß die Reaktionsgeschwindigkeit von Styrol mit Polybutadienyllithium mit und ohne Butadien dieselbe ist und daß sich die Reaktion von Butadien mit Polystyryllithium durch eine sehr große Geschwindigkeit auszeichnet. Der kinetische Verlauf der Copolymerisation kann durch Annahme von vier normalen bimolekularen Reaktionsschritten erklärt werden. Es ist nicht nötig, eine bevorzugte Absorption an den Reaktionszentren anzunehmen, um den anfänglich großen Gehalt von Butadien im Copolymeren zu erklären.
    Notes: An attempt has been made to analyse experimentally the unusual copolymerization of butadiene with styrene initiated by Butyllithium in hydrocarbon solvents. The rates of reaction of styrene with polybutadienyllithium have been measured in both the presence and absence of butadiene, and found to be the same. The reaction of butadiene with polystyryllithium is found to be extremely fast. It is thought that the copolymerization can be explained in terms of four normal bimolecular reactions. No recourse has to be taken to preferential absorption at the reaction centre to explain the initial high butadiene content of the copolymer.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1965.020850122
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  • 4
    Electronic Resource
    Electronic Resource
    The synthesis of polymers via acylation of triphenylamine (1965)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 82 (1965), S. 53-59 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Kondensation von Triphenylamin mit Bissäurechloriden gab mit Zinkchlorid bei 25°C oder mit Aluminiumchlorid bei 5°C lösliche, lineare Polymere. Phosgen, Thionylchlorid und Dichlormethan kondensierten mit Triphenylamin ebenfalls zu Polymeren. Die Substitution in p-Stellung erfolgte nur an zwei Phenylresten bei Verwendung von ZnCl2. Die Substitution am dritten Phenylrest in Gegenwart von AlCl3 führte zu vernetzten Polymeren, was durch Änderung der Bedingungen vermeidbar war.
    Notes: Linear, soluble polymers were prepared by condensing triphenylamine with diacid chlorides in the presence of zinc chloride at 25°C. or aluminum chloride at 5°C. Polymers were also obtained from condensations of phosgene, thionyl chloride, and dichloromethane with triphenylamine. Substitution occurred in the para-position on only two of the phenyl rings when zinc chloride was used. Substitution on the third ring which resulted in cross-linked polymers occurred in the presence of aluminum chloride but was avoided by modifying the conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1965.020820106
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Anionic polymerization of butadiene and styrene (1965)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 3 (1965), S. 449-455 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A kinetic study has been made of the polymerization of butadiene and styrene in an aliphatic hydrocarbon solvent with the use of butyllithium as an initiator. It is shown that the anomalous behavior in the initiation reaction exhibited by isoprene under these conditions is also found for these two monomers. These monomers give a sigmoidal rate curve in the initiation reaction in cyclohexane solution, and the reaction appears to be auto-catalytic. The propagation reactions were studied also, and the results compared with the rather discordant sets of data published by other authors.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1965.100030204
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