PROTON-EXCHANGE MEMBRANES PREPARED BY SIMULTANEOUS RADIATION GRAFTING OF STYRENE ONTO TEFLON-FEP FILMS - SYNTHESIS AND CHARACTERIZATION

被引：95

作者：

ROUILLY, MV

KOTZ, ER

HAAS, O

SCHERER, GG

CHAPIRO, A

机构：

[1] PAUL SCHERRER INST,SEKT ELEKTROCHEM,CH-5232 VILLIGEN,SWITZERLAND

[2] CNRS,F-94320 THIAIS,FRANCE

来源：

JOURNAL OF MEMBRANE SCIENCE | 1993年 / 81卷 / 1-2期

关键词：

PROTON EXCHANGE MEMBRANES; RADIATION GRAFTING; MEMBRANE PREPARATION;

D O I：

10.1016/0376-7388(93)85033-S

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Proton exchange membranes were prepared by simultaneous radiation grafting of styrene onto Teflon-FEP films and subsequent sulfonation. Degrees of grafting from 13 to 52% were obtained. FTIR-ATR in combination with FTIR measurements show a homogeneous distribution of polystyrene across the grafted film. Water uptake after swelling in boiling water and specific conductivity of the sulfonated membranes were determined. The strong decrease in specific resistivity with increasing degree of grafting is due to an increasing proton mobility, reflected by an increasing hydration of the sulfonic acid groups. For degrees of grafting higher than 30% specific resistivity values as low as 2 OMEGA-cm (20-degrees-C) are measured,

引用

页码：89 / 95

页数：7

共 16 条

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