ENERGY EFFECTS FOR SOLVENT SELF-DIFFUSION IN POLYMER SOLVENT SYSTEMS

被引：39

作者：

VRENTAS, JS

VRENTAS, CM

机构：

[1] Department of Chemical Engineering, Pennsylvania State University, Pennsylvania 16802, University Park

来源：

MACROMOLECULES | 1993年 / 26卷 / 06期

关键词：

D O I：

10.1021/ma00058a013

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 combined effects of energy and free volume are considered in the self-diffusion of trace amounts of solvents in amorphous polymers. A method for the determination of the parameters of the free-volume theory of transport is discussed. The ability of the combined energy and free-volume formulation to describe the temperature dependence of the self-diffusion process is evaluated using diffusion data both above and below the polymer glass transition temperature.

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页码：1277 / 1281

页数：5

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