Phase diagram and crystallization of polycarbonate/poly-epsilon-caprolactone blends

被引：12
|
作者：
Hatzius, K [1 ]
Li, Y [1 ]
Werner, M [1 ]
Jungnickel, BJ [1 ]
机构：
[1] DEUTSCH KUNSTSTOFF INST DARMSTADT,GERMAN PLAST INST,D-64289 DARMSTADT,GERMANY
来源：
ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1996年 / 243卷
关键词：
D O I：
10.1002/apmc.1996.052430115
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
It is reported on the equilibrium melting point depression of polycarbonate from bisphenol A (PC) in its blend with poly-epsilon-caprolactone (PCL). To this end, a model which explains the bended course of the measured Hoffman-Weeks plots is developed which takes into account the composition changes at the crystal growth front upon progressive crystallization. The occasional melting point depression of the PCL component is discussed. The calculated Flory-Huggins parameter of chi(12) approximate to -0.09 indicates only weak enthalpic interactions. The remarkable drop in the glass transition temperature of PC with blending allows PC degrees of crystallinity up to 25% upon crystallization from the melt.
引用
收藏
页码：177 / 187
页数：11
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