NEW SYNDIOSPECIFIC CATALYSTS FOR STYRENE POLYMERIZATION

被引：91
|
作者：
KUCHT, A
KUCHT, H
BARRY, S
CHIEN, JCW
RAUSCH, MD
机构：
[1] UNIV MASSACHUSETTS,DEPT CHEM,AMHERST,MA 01003
[2] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,MAT SERV,AMHERST,MA 01003
来源：
ORGANOMETALLICS | 1993年 / 12卷 / 08期
关键词：
D O I：
10.1021/om00032a033
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
(Eta5-Tetramethylcyclopentadienyl)-, (eta5-tetraphenylcyclopentadienyl)-, (eta5-(diphenylphosphi-no)tetramethylcyclopentadienyl)-, and (eta5-(trimethylsilyl)tetramethylcyclopentadienyl)titanium triisopropoxide have been synthesized and characterized. Their catalytic activities for syndiospecific styrene polymerization have been compared with the reference compound (eta5-cyclopentadienyl)titanium triisopropoxide. (Eta5-Tetramethylcyclopentadienyl)titanium triisopropoxide is the best catalyst precursor, giving rise to catalysts having the highest activity to produce polystyrene with the highest syndiotactic yield and molecular weight.
引用
收藏
页码：3075 / 3078
页数：4
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