HOMOGENEOUS GROUP-4 METALLOCENE ZIEGLER-NATTA CATALYSTS - THE INFLUENCE OF CYCLOPENTADIENYL-RING SUBSTITUENTS

被引：633

作者：

MOHRING, PC ^{[1
]}

COVILLE, NJ ^{[1
]}

机构：

[1] UNIV WITWATERSRAND, DEPT CHEM, PRIVATE BAG 3, WITWATERSRAND 2050, SOUTH AFRICA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1994年 / 479卷 / 1-2期

关键词：

GROUP-4; CYCLOPENTADIENYL; ZIEGLER-NATTA CATALYST;

D O I：

10.1016/0022-328X(94)84087-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new range of metallocene catalysts, Cp2MCl2 (M = Ti, Zr, Hf) has been developed in the past decade, which, in the presence of alumoxanes are highly efficient at polymerizing alpha-olefins (ethene, propene, etc.). Variation of the substituents attached to the cyclopentadienyl rings leads to changes in catalyst selectivity and activity. Further, for alpha-olefin polymerisation, variations of the ring substituents leads to variation of the tacticity of the polymer product. Studies in which the influence of the ring substituents have been explored have been reviewed.

引用

页码：1 / 29

页数：29

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