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  • 1
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Immobilisierung von Ti-Mg-Ziegler-Natta-Katalysatoren auf polymeren Trägern aus linearem und vernetztem Polystyren wird beschrieben. Die Katalysatoren werden zur Homopolymerisation von Ethylene im Suspensionsproveß bei 0.84 MPa und 358 K eingesetzt. In Gegenwart von Wasserstoff als Molmassenregler wird Spritzgußpolyethylen in hoher Ausbeute erhalten. Der Einfluß verschiedener Trägerparameter auf katalytische Aktivität, Schmelzindex und Schüttdichte des Polymerisats wird untersucht.
    Notes: Polymeric supports on the base of linear and crosslinked polystyrenes have been used in this work for the immobilization of Ti-Mg Ziegler-Natta complexes. The resulting catalysts are tested in the homopolymerization of ethylene in a suspension process at 358 K and a total pressure of 0.84 MPa. By use of hydrogen for molecular weight control, injection moulding polyethylene in good yield is obtained. Influences of support parameters on a catalytic activity, melt flow index, and bulk density are studied.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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