Octahedral Group IV Bis(phenolate) Catalysts for 1-Hexene Homopolymerization and Ethylene/1-Hexene Copolymerization

被引：23

作者：

Kiesewetter, Elizabeth T. ^{[1
]}

Waymouth, Robert M. ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

MACROMOLECULES | 2013年 / 46卷 / 07期

关键词：

OLEFIN BLOCK-COPOLYMERS; ZIRCONIUM COMPLEXES; REACTIVITY RATIOS; ETHENE/PROPENE COPOLYMERIZATION; CRYSTALLIZATION BEHAVIOR; SEQUENCE DISTRIBUTION; COMONOMER SEQUENCE; HIGH-TEMPERATURE; CHAIN TRANSFER; LINEAR METHODS;

D O I：

10.1021/ma400116w

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Octahedral group IV bis(phenolate) catalysts are highly active catalysts for the isospecific polymerization of 1-hexene and the copolymerization of ethylene with 1-hexene. These catalysts are active for the production of high molecular weight copolymers even at 130 degrees C. The copolymerization parameters for these complexes were determined; all of the bis(phenolate) complexes tested incorporate 1-hexene with high efficiency to give random copolymers. The complexes prepared from the more sterically demanding ligands showed higher molecular weights but similar comonomer incorporations to those prepared from the less sterically demanding ligands.

引用

页码：2569 / 2575

页数：7

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