Extremely active polymerizations of propene by bisindenylzirconocenes and tetra(pentafluorophenyl)-borate

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• 作者：Vathauer ; M. ; Kaminsky ; W.
• 关键词：Homopolymerization ; Tetra(pentafluorophenyl)borate ; Bisindenylzirconocene
• 刊名：Polymer
• 出版年：2001
• 出版时间：April, 2001
• 年：2001
• 卷：42
• 期：9
• 页码：4017-4024
• 全文大小：281 K

文摘

The homogeneous homopolymerization of propene was conducted with the two catalyst precursors Me₂Si(Ind)₂ZrBz₂ (1) and Me₂Si(2-Me-4-Ph-Ind)₂ZrBz₂ (2) and triphenylmethyltetrakis(pentafluorophenyl)borate [C(CH₃)₃][B(C₆F₅)₄] (3) as cocatalyst. After synthesizing the dibenzyl compounds from their dichloride derivatives the catalyst system (1)/(3) was optimized in respect to the catalyst/cocatalyst ratio and the amount of tri(isobutyl) aluminum (TIBA).