Effect of cyclopentadienyl fragment in polymerization of ethylene, propylene, and styrene by nonbridged half-metalloce type titanium and zirconium complexes of the type, Cp′MCl2 [N(2,6-Me2 C6H3)(SiMe3)], -MAO catalyst systems

被引：6

作者：

Nomura, K ^{[1
]}

Fujii, K ^{[1
]}

机构：

[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300101, Japan

来源：

SCIENCE AND TECHNOLOGY IN CATALYSIS 2002 | 2003年 / 145卷

关键词：

D O I：

10.1016/S0167-2991(03)80175-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Various (anilide)(cyclopentadienyl)titanium(IV) complexes of type, Cp'MCl2[N(2,6-Me2C6H3)(SiMe3)] [M = Ti and Cp'=C5Me5 (Cp*, 1), 1,3-Me2C5H3 (2), C5H5 (Cp, 3); M = Zr and Cp'= Cp* (4)], have been chosen for polymerization of ethylene, propylene, and styrene in the presence of methylaluminoxane (MAO). 1 was found to exhibit the highest catalytic activity for ethylene polymerization whereas 3 showed the highest catalytic activity for syndiospecific styrene polymerization. These results clearly show that efficient catalyst for the desired polymerization can be modified only by changing the substituent on cyclopentadienyl group.

引用

页码：121 / 124

页数：4

共 19 条

[1] STEREOSPECIFIC OLEFIN POLYMERIZATION WITH CHIRAL METALLOCENE CATALYSTS [J].