Asymmetric dinuclear ansa zirconocene complexes with methyl and phenyl substituted bridging silicon atoms as dual site catalysts for the polymerization of ethylene

被引：29

作者：

Alt, HG ^{[1
]}

Ernst, R ^{[1
]}

机构：

[1] Univ Bayreuth, Lehrstuhl Anorgan Chem, Anorgan Chem Lab, D-95440 Bayreuth, Germany

来源：

INORGANICA CHIMICA ACTA | 2003年 / 350卷

关键词：

ansa zirconocene complexes; dual site catalysts; dinuclear asymmetric complexes; homogeneous and heterogeneous ethylene; polymerization; METALLOCENE CATALYSTS; OLEFIN POLYMERIZATION; PROPYLENE POLYMERIZATION; MOLECULAR-STRUCTURES; FLUORENYL COMPLEXES; BINUCLEAR; BEHAVIOR; ZIRCONIUM; LIGAND; METALS;

D O I：

10.1016/S0020-1693(02)01491-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Sixteen asymmetric dinuclear ansa zirconocene complexes bearing cyclopentadienyl, indenyl or fluorenyl ligands and their ligand precursors have been synthesized and characterized by NMR spectroscopy. After activation with methylalumoxane (MAO), the complexes behave like dual site catalysts and produce polyethylenes with bimodal or broad molecular weight distributions in homogeneous and heterogeneous media. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 11

页数：11

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