Alkenylsilane structure effects on mononuclear and binuclear organotitanium-mediated ethylene polymerization: Scope and mechanism of simultaneous polyolefin …

SB Amin, TJ Marks

Index: Amin, Smruti B.; Marks, Tobin J. Journal of the American Chemical Society, 2007 , vol. 129, # 10 p. 2938 - 2953

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Citation Number: 45

Abstract

Alkenylsilanes of varying chain lengths are investigated as simultaneous chain-transfer agents and comonomers in organotitanium-mediated olefin polymerization processes. Ethylene polymerizations were carried out with activated CGCTiMe2 and EBICGCTi2Me4 (CGC= Me2Si (Me4C5)(NtBu); EBICGC=(μ-CH2CH2-3, 3'){(η5-indenyl)[1-Me2Si (tBuN)]} 2) precatalysts in the presence of allylsilane, 3-butenylsilane, 5-hexenylsilane, and 7- ...