MOLECULAR-TRANSPORT OF SOME INDUSTRIAL SOLVENTS THROUGH A POLYURETHANE MEMBRANE

被引：30

作者：

AITHAL, US ^{[1
]}

AMINABHAVI, TM ^{[1
]}

机构：

[1] KARNATAK UNIV,DEPT CHEM,DHARWAR 580003,KARNATAKA,INDIA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 10期

关键词：

D O I：

10.1002/app.1991.070421023

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Sorption and transport studies of several industrial solvents have been investigated through a Uralite 3142 polyurethane. Diffusion coefficients have been measured for the preswollen and fully swollen polyurethanes. For majority of solvents, non-Fickian transport mode was observed and these results have been interpreted in terms of polymer-penetrant interactions. Temperature-dependent diffusion parameters followed the Arrhenius relation from which energy of activation have been obtained. The Flory-Rehner equation, in spite of its limitations, has been found to be useful to estimate the molar mass between crosslinks of the network polyurethane.

引用

页码：2837 / 2844

页数：8

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