Covalently linked heterobimetallic catalysis for olefin polymerization

被引：85
|
作者：
Wang, JX [1 ]
Li, HB [1 ]
Guo, N [1 ]
Li, LT [1 ]
Stern, CL [1 ]
Marks, TJ [1 ]
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
来源：
ORGANOMETALLICS | 2004年 / 23卷 / 22期
关键词：
D O I：
10.1021/om049481b
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This contribution describes the synthesis and polymerization characteristics of the covalently linked heterobinuclear constrained-geometry polymerization catalyst (mu-CH2CH2-3,3'){(eta(5)-indenyl)[1-Me2Si((BuN)-Bu-t)](TiMe2) }{(eta(5)-indenyl)[1-Me2Si((BuN)-Bu-t)](ZrMe2)} (Ti1Zr1). When activated with Ph3C+B(C6F5)(-)(4), it is competent to produce long-chain (greater than or equal toC(6)) branched polyethylenes in ethylene homopolymerization, in sharp contrast to control experiments with mixtures of analogous but mononuclear Zr and Ti CGC catalysts.
引用
收藏
页码：5112 / 5114
页数：3
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