PHYSICAL AGING PHENOMENA IN AN AMORPHOUS POLYMER AT TEMPERATURES FAR BELOW THE GLASS-TRANSITION

被引：25

作者：

MUZEAU, E ^{[1
]}

VIGIER, G ^{[1
]}

VASSOILLE, R ^{[1
]}

机构：

[1] INST NATL SCI APPL, ETUD MET PHYS & PHYS MAT GRP, CNRS, URA 341, F-69621 VILLEURBANNE, FRANCE

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 172卷 / pt 1期

关键词：

D O I：

10.1016/0022-3093(94)90490-1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Isothermal agings have been carried out on poly(methyl methacrylate) at temperature far below the glass transition temperature region. Aging effects have been investigated by calorimetric and dynamic mechanical techniques; influence of quenching rate, time and temperature of aging have been studied. It is seen that the beta-relaxation is not affected by physical aging and that the alpha-relaxation spreads out in the beta-relaxation temperature domain. Comparison of the results obtained from the two techniques shows the occurrence of a specific mechanism for aging temperature far below the glass transition temperature.

引用

页码：575 / 579

页数：5

共 15 条

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