Di- and trinuclear zirconium complexes as catalysts for ethylene polymerization

被引：1

作者：

Rimkus, Andrea M. ^{[1
]}

Alt, Helmut G. ^{[1
]}

机构：

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

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2016年 / 820卷

关键词：

Di-and trinuclear zirconium complexes; Coupling reactions; Catalytic ethylene polymerization; Multimodal molecular weight distributions; ANSA ZIRCONOCENE COMPLEXES; DUAL-SITE CATALYSTS; TRANSITION-METAL-COMPLEXES; METALLOCENE COMPLEXES; IRON COMPLEXES; FI CATALYSTS; OLIGOMERIZATION; PRECURSORS; LIGANDS; PERFORMANCE;

D O I：

10.1016/j.jorganchem.2016.07.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Bimodal and multimodal molecular weight distributions of polyethylenes can be achieved with di- or trinuclear zirconium catalysts in homogeneous solution. In order to prepare such complexes, bis(phenoxyimine) zirconium complexes and zirconocene complexes were coupled in Sonogashira reactions. Hydrosilylation reactions were applied for the combination of metallocene complexes with silane substituted N-heterocyclic compounds, such as 3,5-dimethylpyrazoles. The resulting di- and trinuclear complexes were activated with methylaluminoxane (MAO) and applied as catalysts for ethylene polymerization. The catalytic performances of these complexes and their applications in olefin polymerization reactions are discussed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：30 / 40

页数：11

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