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

页码：3075 / 3078

页数：4

共 14 条

[1] SYNTHESES, REACTIVITIES, MOLECULAR-STRUCTURES, AND PHYSICAL-PROPERTIES OF PARAMAGNETIC BIS(TETRAPHENYLCYCLOPENTADIENYL) COMPLEXES OF VANADIUM, CHROMIUM, COBALT, AND NICKEL [J].