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

页码：283 / 288

页数：6

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