STUDY ON HIGHLY ACTIVE ZIEGLERNATTA CATALYSTS FOR POLYMERIZATION OF OLEFINS

被引：1

作者：

王立

封麟先

徐君庭

杨士林

机构：

[1] Department of Polymer Science and Engineering

[2] Zhejiang University

[3] Hangzhou

来源：

Chinese Journal of Polymer Science | 1995年 / 01期

关键词：

Ziegler-Natta catalyst; Polymerization of olefins; ESR; Internal and external donors;

D O I：

暂无

中图分类号：

TQ317 [高分子化合物产品];

学科分类号：

0805 ; 080502 ;

摘要：

<正> In this paper, highly active Ziegler-Natta catalysts of MgCl2 supported TiCl4 for synthesis ofpolyolefins, using di-n-butyl phthalate (DNBP) as internal donor and diphenyl dimethoxyl silane(DPDMS) as external donor, have been prepared. The conditions controlling the treatment ofsupport were studied. The interactions of various components present in the catalysts and theirinfluences on catalytic performance were investigated. It is found that by using DNBP and DPDMSas internal and external donors together the polymer products with higher isotactic index can beobtained. Plausible structure model and mechanism were proposed.

引用

页码：41 / 50

页数：10