Reactivity of secondary metal-alkyls in catalytic propene polymerization: How dormant are "dormant chains"?

被引：43

作者：

Busico, V ^{[1
]}

Cipullo, R ^{[1
]}

Romanelli, V ^{[1
]}

Ronca, S ^{[1
]}

Togrou, M ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Chim, I-80126 Naples, Italy

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 06期

关键词：

D O I：

10.1021/ja042839a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this communication, we report on the direct measurement of dormant chain concentration and of the relative reactivity of authentic primary and secondary Zr-polymeryls toward propene, ethene, and H2 under practical conditions for a new highly regio- and stereoselective postmetallocene polymerization catalyst with controlled kinetic behavior. The results, in particular, confirm the poor reactivity toward propene of secondary M-polymeryls and the possible accumulation of dormant chains in propene homopolymerization. Copyright © 2005 American Chemical Society.

引用

页码：1608 / 1609

页数：2

共 18 条

[1]

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[2]

2-A

[3]

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[4]

BUSICO V, 1993, MAKROMOL CHEM-RAPID, V14, P97