OLEFIN POLYMERIZATION WITH METALLOCENE CATALYSTS SUPPORTED ON POLYSILOXANE DERIVATIVES

被引：63
|
作者：
SOGA, K
ARAI, T
HOANG, BT
UOZUMI, T
机构：
[1] School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa, 923-12, Tatsunokuchi‐cho, Nomingun
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 1995年 / 16卷 / 12期
关键词：
D O I：
10.1002/marc.1995.030161205
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Three kinds of zirconocene catalysts, supported on polysiloxanes substituted with methyl-indenyl, methyl-fluorenyl and two indenyl groups, respectively, were prepared and applied to propene and ethylene polymerizations using methylaluminoxane as cocatalyst. Both the activity and stereospecificity of these catalysts were found to lie between those of corresponding homogeneous and SiO2-supported catalysts. Surprisingly, all the catalysts gave a mixture of atactic and isotactic poly(propylene), plausible reasons for which are briefly discussed.
引用
收藏
页码：905 / 911
页数：7
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