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  • 1980-1984
  • 1965-1969  (2)
  • 1967  (2)
Material
Years
  • 1980-1984
  • 1965-1969  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta mechanica 4 (1967), S. 398-398 
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 101 (1967), S. 320-336 
    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: The preparation of homopolymers of butadiene in the presence of cobalt and vanadium-containing ZIEGLER-catalysts is reported and the influence of water on the reaction system is investigated. Furthermore, the preparation of copolymers of butadiene with isoprene, 1,3-pentadiene, and styrene in the presence of the catalysts is described and the technical properties of the polymers discussed.While, the homopolymers have a sterically uniform structure, butadiene is sterically less regularly introduced into the copolymers. Only in the case of containing catalysts, butadiene is homo- and co-polymerized in 1,4-trans position.Individual technical properties of the copolymers yet not the properties as a whole are superior to 1,4cis-polybutadiene.
    Notes: Es wird über die Darstellung von Homopolymeren des Butadiens mit Hilfe von kobalt und vanadinhaltigen ZIEGLER-Katalysatoren berichtet und der Einfluß des Wassers im Reaktionssystem untersucht. Ferner werden die Herstellung von Copolymeren des Butadiens mit Isopren, Pentadien- (1,3) und Styrol mit diesen Katalysatoren geschildert und die anwendungstechnischen Eigenschaften der Polymeren besprochen.Während die Homopolymeren einen sterisch weitgehend regelmäßigen Aufbau besitzen, wird das Butadien in den Copolymeren in fast allen Fällen weniger regelmäßig eingebaut. Nur mit vanadinhaltigen Katalysatoren wird Butadien auch in den Copolymeren ausschließ-lich in 1,4-trans-Stellung incorporiert.Die Copolymeren übertreffen zwar in einzelnen anwendungstechnischen Eigenschaften das 1,4-cis-Polybutadien, nicht jedoch in den Gesamteigenschaften.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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