DSC and DMTA characterization of ternary blends

被引：30

作者：

Pinoit, D

Prud'homme, RE ^{[1
]}

机构：

[1] Univ Laval, Engn Res Ctr Macromol, Dept Chem, Quebec City, PQ G1K 7P4, Canada

[2] Univ Laval, Engn Res Ctr Macromol, CERSIM, Quebec City, PQ G1K 7P4, Canada

来源：

POLYMER | 2002年 / 43卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ternary polymer blends; miscibility; poly(methyl methacrylate);

D O I：

10.1016/S0032-3861(02)00025-3

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 phase behavior of ternary blends made of poly(epichlorohydrin) (PECH), poly(vinyl acetate) PVAc and poly(methyl methacrylate) (PMMA) has been investigated by differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMTA). DMTA measurements have been shown to be more sensitive than DSC for the detection of a second phase, for the determination of the composition of each phase, and the distribution of PECH in each of them. About 70% PECH was required to obtain a single narrow T, in the ternary system, which suggests a single homogeneous phase in the limit of sensitivity of DMTA. This study also emphasizes the importance of the composition of the immiscible polymer pair (i.e. the PVAc/PMMA pair in the PECH/PVAc/PMMA system), in addition to the thermodynamic interaction parameters, for controling the phase behavior of ternary systems. (C) 2002 Published by Elsevier Science Ltd.

引用

页码：2321 / 2328

页数：8

共 16 条

[1] MISCIBILITY BEHAVIOR OF TERNARY POLY(CAPROLACTONE) POLYVINYL-CHLORIDE) CHLORINATED POLYVINYL-CHLORIDE) BLENDS [J].