Stereocomplex formation in AB di-block copolymers of poly(epsilon-caprolactone) (A) and poly(lactide) (B)

被引：16

作者：

Stevels, WM ^{[1
]}

Ankone, MJK ^{[1
]}

Dijkstra, PJ ^{[1
]}

Feijen, J ^{[1
]}

机构：

[1] UNIV TWENTE,DEPT CHEM TECHNOL,7500 AE ENSCHEDE,NETHERLANDS

来源：

MACROMOLECULAR SYMPOSIA | 1996年 / 102卷

关键词：

D O I：

10.1002/masy.19961020115

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal properties of two series of AB di-block copolymers of poly(epsilon-caprolactone) (A) and poly(lactide) (B) and their blends were studied. Each series contained poly(lactide) blocks of opposite chirality. The length of the poly(epsilon-caprolactone) blocks was not varied (DP = 70), whereas the poly(lactide) blocks were of varying length (DP = 5 - 80). Blends of polymers containing blocks of opposite chirality were prepared by mixing in solution. The melting temperature of the PLA phase was raised by approximately 55 degrees C in the blends due to stereocomplex formation. The melting temperatures of the crystalline PCL and PLA phases strongly depended on the composition of the block copolymers.

引用

页码：107 / 113

页数：7

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