Syndiospecific polymerization of propylene: 2-substituted and 2,7-substituted metallocene complex of the (C(13)H(8-n)R(n)CR(n)(')C5H4)MCl(2) (n=1,2; R=alkoxy, alkyl, hal; R(')=Me, Ph; M=Zr, Hf)

被引:43
作者
Alt, HG
Zenk, R
机构
[1] Lab. F. Anorganische Chem. Univ. B., D-95440 Bayreuth
关键词
zirconium; hafnium; fluorenyl; syndiotactic polypropylene; catalysis; polymerization;
D O I
10.1016/0022-328X(95)06045-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Seventeen new catalyst. precursors for the syndiospecific polymerization of propylene are presented. The new metallocene complexes are substituted in the positions 2 and 7 of the fluorenlidene fragment by MeO-, halogen-, alkyl- and aryl groups. The focus is directed on effective new synthetic routes to substituted fluorenes and the preparation of Be catalyst precursors. In addition first polymerization results are reported.
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页码:39 / 54
页数:16
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