Copolymerization of ethylene/1-octene with ansa-zirconocene catalysts

被引：0

作者：

Yao, H ^{[1
]}

Xiao, SJ

Guo, JH

Qian, CT

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst Organ Chem, Shanghai 200032, Peoples R China

来源：

ACTA POLYMERICA SINICA | 1998年 / 05期

关键词：

copolymerization; zirconocene; methylaluminoxane; ethylene; 1-octene;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymerization of ethylene/1-octene with three ansa-zirconocene/MAO catalyst systems were investigated. The polymerization activity is dependent upon the influence of electronic effects. It decreases in the following order: C6H4(CH2)(2)Cp2ZrCl2 > C5H3N(CH2)(2)Cp2ZrCl2 > CH3N(CH2)(2)ZrCl2. The composition and sequence distribution of copolymer were calculated from C-13-NMR spectra. It was found that the activityes of three ansacatalysts were lower than Et(Ind)(2)ZrCl2 under the same 1-octeone concentration. And their copolymer had lower 1-octene incorporation than that of Et(Ind)(2)ZrCl2. Other properties such as molecular wieght, melting point of copolymer were compared.

引用

页码：612 / 615

页数：4

共 6 条

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[5] COPOLYMERIZATION OF ETHYLENE WITH 1-HEXENE AND 1-OCTENE - CORRELATION BETWEEN TYPE OF CATALYST AND COMONOMER INCORPORATED
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[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS, 1995, 196 (12) : 3991 - 4000
[6] UOZOMI T, 1992, MAKROMOL CHEM, V193, P823

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