OBSERVATIONS ON THE RATE ENHANCEMENT EFFECT WITH MGCL2/TICL4 AND CP2ZRCL2 CATALYST SYSTEMS UPON 1-HEXENE ADDITION

被引：101

作者：

KOIVUMAKI, J ^{[1
]}

SEPPALA, JV ^{[1
]}

机构：

[1] HELSINKI UNIV TECHNOL,DEPT CHEM ENGN,SF-02150 ESPOO,FINLAND

来源：

MACROMOLECULES | 1993年 / 26卷 / 21期

关键词：

D O I：

10.1021/ma00073a001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Ethene was copolymerized with 1-hexene in the presence of heterogeneous MgCl2/TiCl4 and homogeneous Cp2ZrCl2 catalysts to study the effect of 1-hexene addition on the ethene polymerization system. With both catalyst systems, 1-hexene had a rate-increasing effect. Compared with homopolymerization, the ethene consumption was increased as much as 8-fold with MgCl2/TiCl4 and 2.5-fold with Cp2ZrCl2. With Cp2ZrCl2 catalyst rate enhancement was apparent only when the polyethene was insoluble in the reaction medium. At higher temperatures, where the product was soluble, there was no rate enhancement but rather a rate decrease.

引用

页码：5535 / 5538

页数：4

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