Glass transition and structural relaxation in polystyrene poly(2,6-dimethyl-1,4-phenylene oxide) miscible blends

被引：43

作者：

Cowie, JMG

Harris, S

Ribelles, JLG ^{[1
]}

Meseguer, JM

Romero, F

Torregrosa, C

机构：

[1] Heriot Watt Univ, Dept Chem, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Politecn Valencia, Dept Termodinam Aplicada, E-46071 Valencia, Spain

[3] Univ Politecn Valencia, Dept Fis Aplicada, E-46071 Valencia, Spain

来源：

MACROMOLECULES | 1999年 / 32卷 / 13期

关键词：

D O I：

10.1021/ma971531j

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 glass transition and the structural relaxation processes of blends of polystyrene and poly(2,6-dimethyl-1,4-phenylene oxide) have been studied by differential scanning calorimetry. The experimental results were compared with the prediction of a model based on the calculation of the configurational entropy of the sample during the thermal history. The model is fitted to the experimental results, and material parameters independent of the thermal history are obtained. These parameters are used to estimate the length of the cooperativity unit at the glass-transition temperature for each blend and pure polymer.

引用

页码：4430 / 4438

页数：9

共 40 条

[1] ON TEMPERATURE DEPENDENCE OF COOPERATIVE RELAXATION PROPERTIES IN GLASS-FORMING LIQUIDS [J].