Modelling of membrane potential and ionic flux in weak amphoteric polymer membranes

被引：21

作者：

Ramirez, P

Mafe, S

Tanioka, A

Saito, K

机构：

[1] TOKYO INST TECHNOL,DEPT ORGAN & POLYMER MAT,TOKYO 152,JAPAN

[2] JGC CORP,DIV RES & DEV,MINAMI KU,YOKOHAMA,KANAGAWA 232,JAPAN

[3] UNIV JAUME 1,DEPT CIENCIES EXPT,APDO 224,E-12080 CASTELLO DE PLANA,SPAIN

[4] UNIV VALENCIA,FAC FIS,DEPT TERMODINAM,E-46100 BURJASSOT,SPAIN

来源：

POLYMER | 1997年 / 38卷 / 19期

关键词：

weak amphoteric polymer membranes; membrane potential; ionic flux;

D O I：

10.1016/S0032-3861(96)01090-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Model calculations concerning the membrane potential and ionic fluxes in weak amphoteric polymer membranes have been presented and the results were compared with recent experimental data obtained with a membrane which contains succinyl chitosan as ampholyte and poly(vinyl alcohol) as supporting matrix. The ion transport through the membrane has been described with the aid of the Nernst-Planck equations, and the results obtained explain satisfactorily the observed experimental trends in broad ranges of pH and electrolyte concentration. Also, the model predictions concerning the membrane isoelectric point may be useful for the analysis of future experiments. (C) 1997 Elsevier Science Ltd.

引用

页码：4931 / 4934

页数：4

共 23 条

[1] SWELLING PROPERTIES OF ACRYLAMIDE-BASED AMPHOLYTIC HYDROGELS - COMPARISON OF EXPERIMENT WITH THEORY [J].