Metallacyclic zirconocene complexes as catalysts for homogeneous and heterogeneous ethylene polymerization

被引：15
|
作者：
Licht, EH [1 ]
Alt, HG [1 ]
机构：
[1] Univ Bayreuth, Anorgan Chem Lab, D-95440 Bayreuth, Germany
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 154卷 / 1-2期
关键词：
zirconium; metallacycles; catalysis; ethylene polymerization; heterogenization;
D O I：
10.1016/S1381-1169(99)00378-7
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：
A novel class of heterogeneous ethylene polymerization catalysts, derived from homogeneous metallacyclic zirconocene complexes is described. These complexes can be activated with methyl aluminoxane (MAO) and used for ethylene polymerization. The polymerization reaction begins homogeneously, but the homogeneous metallacycles self-immobilize during the polymerization process. Subsequent olefin polymerization is therefore heterogeneously catalyzed. This method of heterogeneous olefin polymerization is compared with a homogeneous and an alternate heterogeneous polymerization technique. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：65 / 72
页数：8
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