Copolymerization of ethylene and 1,5-hexadiene under high pressure catalyzed by a metallocene

被引：35

作者：

Bergemann, C ^{[1
]}

Cropp, R ^{[1
]}

Luft, G ^{[1
]}

机构：

[1] TECH UNIV DARMSTADT,INST CHEM ENGN,D-64287 DARMSTADT,GERMANY

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1997年 / 116卷 / 03期

关键词：

copolymerization; ethylene; 1,5-hexadiene; high pressure/temperature; metallocene catalyst;

D O I：

10.1016/S1381-1169(96)00366-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The copolymerization of ethylene and 1,5-hexadiene was investigated under high pressure of 1500 bar using a zirconocene catalyst in the presence of methylaluminoxane. The concentration of the diene was varied over a wide range including the homopolymerization of both ethylene and 1,5-hexadiene. From the amount of polymer formed per unit of time and the catalyst feed the productivity was determined. The resulting polymers were analyzed by DSC, GPC, IR- and C-13-NMR-spectroscopy to evaluate the average molecular weights together with the polydispersity, the crystallinity, the melting point and the structure. The catalyst exhibits a good ability for copolymerization and cyclopolymerization of 1,5-hexadiene in which a predominance of trans ring formation was observed.

引用

页码：317 / 322

页数：6

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