FREE VOLUME OF POLYMERS ABOVE THE GLASS-TRANSITION

被引：13

作者：

AHARONI, SM

机构：

[1] Chemical Research Laboratories, Allied Chemical Corporation, Morristown, New Jersey

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1979年 / 23卷 / 01期

关键词：

D O I：

10.1002/app.1979.070230120

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 magnitude of the activation energy for diffusion, ED is shown to be inversely dependent on the fractional free volume of the polymer above Tg. From the proportionality of ED above and below Tg, the magnitude of ED below Tg is also inversely dependent on the free volume in that temperature range. While this correlation holds very well for our determinations of fractional free volume above Tg it does not correlate with the Simha‐Boyer fractional free volume below Tg, contrary to expectations. Copyright © 1979 John Wiley & Sons, Inc.

引用

页码：223 / 228

页数：6

共 44 条

[1] CRITICAL EXPONENT EQUATIONS - THEIR RELATION WITH FREE VOLUMES AT TG AND TR AND WITH MACROMOLECULAR DOMAIN CONCEPT [J].