Abstract
Propene was polymerized at 0 o C with t BuNSiMe 2 C 5 Me 4 TiMe 2 /MAO. Kinetic features and other parameters indicated quasi-living polymerization. Effects of various trialkylaluminiums as additives have been investigated; it was found that compounds with more bulky groups like i Bu 3 Al, Oct 3 Al increased the activities significantly whereas Me 3 Al and Et 3 Al reduced the activities of the catalyst system. The triad sequence in the 13 C NMR spectrum confirmed a syndiotactic-enriched atactic polypropene. KEY WORDS: P olymerization of propene, t BuNSiMe 2 C 5 Me 4 TiMe 2 , Trialkylaluminiums, Syndiotactic-enriched atactic polypropene Bull. Chem. Soc. Ethiop. 2004 , 18(2), 131-141.
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