Alternating copolymerization of ethylene and 1-octene with meso-[dimethylsilylbis(2-methyl-1-indeny)]zirconium dichloride-methylaluminoxane as catalyst system

被引：40

作者：

Uozumi, T ^{[1
]}

Miyazawa, K ^{[1
]}

Sano, T ^{[1
]}

Soga, K ^{[1
]}

机构：

[1] JAPAN ADV INST SCI & TECHNOL,SCH MAT SCI,TATSUNOKUCHI,ISHIKAWA 92312,JAPAN

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1997年 / 18卷 / 09期

关键词：

D O I：

10.1002/marc.1997.030180917

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymerizations of ethylene and a-olefins with homogeneous metallocene catalysts generally give the corresponding random copolymers with narrow molecular mass distributions. In this study, we have conducted the copolymerization sf ethylene and 1-octene with the meso-Me2Si(2-Me-1-Ind)(2)ZrCl2-methylaluminoxane (MAO) catalyst system, and analyzed the microstructure of the resulting copolymers in detail. The content of the alternating [EO] sequence increases markedly with an increase in the feed ratio of 1-octene to ethylene, reaching over 95% under appropriate copolymerization conditions. We have thus succeeded in preparing the first sample of alternating olefin copolymers.

引用

页码：883 / 889

页数：7