Biodegradable block copolymers with poly(ethylene oxide) and poly(glycolic acid-valine) blocks

被引：18

作者：

Feng, YK ^{[1
]}

Klee, D ^{[1
]}

Höcker, H ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Dept Text Chem & Macromol Chem, D-52062 Aachen, Germany

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2002年 / 86卷 / 11期

关键词：

biodegradable; block copolymers; ring-opening polymerization; thermal properties;

D O I：

10.1002/app.10461

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Biodegradable ABA triblock copolymers with poly(ethylene oxide) and poly(glycolic acid-valine) blocks were synthesized via ring-opening polymerization of cyclo(glycolic acid-valine) using Ca-alcoholates of hydroxy-telechelic PEO as the initiator. The L-valine residue racemized during copolymerization of cyclo(glycolic acid-valine). The crystallization of the block copolymers decreases with decreasing PEO content in the triblock copolymers and with increasing length of the poly(glycolic acid-valine) block. (C) 2002 Wiley Periodicals, Inc.

引用

页码：2916 / 2919

页数：4

共 20 条

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