HIGH-MOLECULAR-WEIGHT POLYPROPYLENE THROUGH SPECIFICALLY DESIGNED ZIRCONOCENE CATALYSTS

被引:309
|
作者
SPALECK, W [1 ]
ANTBERG, M [1 ]
ROHRMANN, J [1 ]
WINTER, A [1 ]
BACHMANN, B [1 ]
KIPROF, P [1 ]
BEHM, J [1 ]
HERRMANN, WA [1 ]
机构
[1] HOECHST AG, W-6230 FRANKFURT 80, GERMANY
关键词
D O I
10.1002/anie.199213471
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A breakthrough for the technical application of zirconium catalysts in isotactic propylene polymerization has been achieved with complexes 1. The highest molecular mass of polypropylene, the best isotacticity, and the highest activity of all catalysts are provided by 1, R1 = R3 = CH3, R2 = i-C3H7. Hydrogenation of the six-membered ring drastically lowers the activity and the molecular mass obtained.
引用
收藏
页码:1347 / 1350
页数:4
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