Octahedral complexes in the polymerization of α-olefins

被引：15

作者：

Aharonovich, Sinai ^{[1
]}

Volkis, Victoria ^{[1
]}

Eisen, Moris S. ^{[1
]}

机构：

[1] Schulich Fac Chem, Inst Catalysis Sci & technol, IL-32000 Haifa, Israel

来源：

MACROMOLECULAR SYMPOSIA | 2007年 / 260卷

关键词：

deuterium labeled polypropylene; elastomeric polypropylene; octahedral benzamidiante complexes; taft relationship;

D O I：

10.1002/masy.200751424

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of dimethyl titanium benzamidinate complexes has been prepared containing various functional groups at the aromatic ring. These functional groups were selected to study their electronic or steric effects at the cationic metal center in the polymerization of propylene. Quantitative structure activity relationship (QSAR) studies showed that a linear relationship is observed only for the Taft Parameter (Es). Mono- and bis-benzamidinate complexes were found to produce similar polymers indicating that alike active species are obtained regardless of the starting complex. Deuterium labeled 2-D-propene showed that a new epimerization mechanism for this type of complexes is operative.

引用

页码：165 / 171

页数：7

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