MELTING-POINT DEPRESSION IN POLY(EPSILON-CAPROLACTONE) POLY(STYRENE-CO-ACRYLONITRILE) BLENDS

被引：0
|
作者：
KRESSLER, J [1 ]
KAMMER, HW [1 ]
机构：
[1] UNIV TECHNOL DRESDEN,DEPT CHEM,MOMMSENSTR 13,DDR-8027 DRESDEN,GER DEM REP
来源：
POLYMER BULLETIN | 1988年 / 19卷 / 03期
关键词：
Calorimetry--Applications - Copolymers--Composition Effects - Liquids--Thermodynamics - Mixtures--Melting;
D O I：
暂无
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 melting point depression of poly(Ε-caprolactone)/poly(styrene-co-acrylonitrile) (PCL/SAN) blends with changes in the acrylonitrile content of SAN and in the blend ratio was investigated by differential scanning calorimetry. For the melting points at a constant blend ratio a minimum of the dependence on the copolymer composition occurs for blends containing about 20 wt% acrylonitrile in SAN. From melting point depression data a negative, binary interaction parameter was obtained for PCL/SAN blends containing a SAN with 19.2 wt% AN. By optical microscopy it can be shown that the shape of the spherulites changes with the copolymer composition of SAN and with blend ratio.
引用
收藏
页码：283 / 288
页数：6
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