Ultraviolet-visible spectra of Nafion membrane

被引：23

作者：

DeAlmeida, SH

Kawano, Y

机构：

[1] UNIV FED BAHIA,INST QUIM,BR-40170290 SALVADOR,BA,BRAZIL

[2] UNIV FED SAO PAULO,INST QUIM,BR-05599970 SAO PAULO,BRAZIL

来源：

EUROPEAN POLYMER JOURNAL | 1997年 / 33卷 / 08期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/S0014-3057(96)00217-0

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 effect of pre-treatment, counterion and electrolyte concentration, temperature and aging of Nafion 117 membrane was investigated by electronic absorption spectroscopy. The band at 196 nm is sensitive to the cluster environment. Its intensity decreases with increasing water content and increases with various countercations according to increasing ionic radius, increase of electrolyte concentration, temperature and time of aging. This behavior may be associated with structural changes induced by membrane hydration. (C) 1997 Elsevier Science Ltd.

引用

页码：1307 / 1311

页数：5

共 31 条

[1] PROTON NMR METHOD FOR THE QUANTITATIVE-DETERMINATION OF THE WATER-CONTENT OF THE POLYMERIC FLUOROSULFONIC ACID NAFION-H [J].