Vinyl polymerization of norbornene catalyzed by a series of bis(β-ketoiminato) nickel (II) complexes in the presence of methylaluminoxane

被引：43

作者：

Bao, F

Lü, XQ

Kang, BS

Wu, Q ^{[1
]}

机构：

[1] Sun Yat Sen Zhongshan Univ, Inst Polymer Sci, Guangzhou 510275, Peoples R China

[2] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China

[3] Sun Yat Sen Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2006年 / 42卷 / 04期

基金：

中国国家自然科学基金;

关键词：

beta-ketoiminato ligands; nickel complexes; catalyst; norbornene; polymerization;

D O I：

10.1016/j.eurpolymj.2005.09.026

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of nickel complexes with beta-ketoiminato ligands based on pyrazolone derivative were synthesized and characterized, which are highly active catalyst precursors for norbornene polymerization under mild reaction conditions through a vinyl-type polymerization mechanism. The catalytic activity could be up to 3.38 x 10(7) g polymer/mol Ni h. The molecular weight distributions of the polynorbornenes (M-w/M-n = 2.05-2.56) indicate the presence of a single active species in the polymerization process. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：928 / 934

页数：7

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