Synthesis and characterization of poly(ester-urethanes)

被引：0

作者：

Bogdanov, B ^{[1
]}

Toncheva, V ^{[1
]}

Schacht, E ^{[1
]}

机构：

[1] State Univ Ghent, Polymer Mat Res Grp, B-9000 Ghent, Belgium

来源：

MACROMOLECULAR SYMPOSIA | 2000年 / 152卷

关键词：

D O I：

10.1002/1521-3900(200003)152:1<117::AID-MASY117>3.0.CO;2-A

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Segmented poly(ester-urethanes) (PEUs) based on poly(epsilon-caprolactone) (PCL) as a soft segment and a non-aromatic diisocyanate in the hard segment are synthesized as biodegradable materials. In a first part the environmental degradation of PCL and its copolymers was investigated. In the later stage of the work the morphology and thermal properties of the segmented poly(ester-urethanes) are studied in respect to the soft segment length, content of the hard segment and total molecular weight. It was established that a strain induced crystallization of amorphous poly(ester-urethane) based on the shortest PCL soft segment (M=2000) occurs when the samples from PEU are stretched at room temperature above a certain elongation ratio.

引用

页码：117 / 126

页数：10

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