Yttrium complexes as catalysts for living and immortal polymerization of lactide to highly heterotactic PLA

被引：178

作者：

Amgoune, Abderramane ^{[1
]}

Thomas, Christophe M. ^{[1
]}

Carpentier, Jean-Francois ^{[1
]}

机构：

[1] Univ Rennes 1, CNRS, UMR 6226, F-35042 Rennes, France

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 06期

关键词：

catalysis; polylactide; poly (3-hydroxybutyrate); ring-opening polymerization; yttrium;

D O I：

10.1002/marc.200600862

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Amino-alkoxy-bis (phenolate) yttrium complexes act in the presence of an excess of alcohol (up to 50 equiv. vs. Y) as highly active and stereoselective catalysts for rac-lactide and rac-beta-butyrolactone polymerizations. These versatile systems enable the production of large quantities of polymer with small amounts of catalyst, optimizing productivity, and also allow the preparation of polymers with functional end groups, which may be employed as intermediates for macro-molecular engineering applications.

引用

页码：693 / 697

页数：5

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