The effect of preparation conditions on the catalyst Nd(P507)3/H2O/Al(i-Bu)3 for the polymerization of styrene

被引：0

作者：

Liu, L ^{[1
]}

Gong, Z

Zheng, YL

Jing, XB

Zhao, HY

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Nankai Univ, Inst Polymer Chem, Tianjin 300071, Peoples R China

[3] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 1999年 / 200卷 / 04期

关键词：

D O I：

10.1002/(SICI)1521-3935(19990401)200:4<763::AID-MACP763>3.0.CO;2-R

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The catalyst system neodymium phosphonate Nd(P-507)(3)/H2O/Al(i-Bu)(3) for the polymerization of styrene was examined. Effects of the addition order of the catalyst components, catalyst aging time and aging temperature on the catalyst activity and the polymer characteristics were investigated. The catalyst activity for isospecific polymerization of styrene increases with aging time and reaches the maximum with a catalyst aged for 45 min at 70 degrees C. The aging time that the catalyst needs to reach the highest activity for isospecific polymerization decreases with increasing aging temperature. The preformed catalyst and the in situ catalyst were compared with respect to the kinetic behavior of the styrene polymerization and the polymer characteristics.

引用

页码：763 / 767

页数：5

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