Copolymerization of ethylene with 1-octene using Et(Ind)2ZrCl2/MAO catalyst

被引：0
|
作者：
Yao, H [1 ]
Xiao, SJ [1 ]
Lu, HL [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 1998年 / 16卷 / 01期
关键词：
copolymerization; ethylene; l-Octene; methylaluminoxane; Et(Ind)(2)ZrCl2;
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 was carried out in toluene with various concentrations of comonomer in the feed using Et(Ind)(2)ZrCl2/MAO (methyl aluminoxane) as catalyst. It was found that with the increase of 1-octene concentration in the feed the content of 1-octene in the copolymer increases, while the density, melting point, crystallinity and intrinsic viscosity of copolymer decrease. A copolymer with very low density, containing 11.5 mol% of 1-octene (VLLDPE) can be produced with this catalyst system. The effect of temperature and zirconium aluminum mole ratio of the catalyst on the copolymerization was also investigated. The results of C-13 NMR determination of the copolymer showed that the 1-octene units in the copolymer are principally isolated.
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页码：32 / 37
页数：6
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