Proton and water transport in nano-separated polymer membranes

被引：52

作者：

Kreuer, KD ^{[1
]}

Ise, M ^{[1
]}

Fuchs, A ^{[1
]}

Maier, J ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

JOURNAL DE PHYSIQUE IV | 2000年 / 10卷 / P7期

关键词：

D O I：

10.1051/jp4:2000756

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The microstructure of proton conducting polymers (NAFION and a sulfonated polyetherketone) has been investigated by SAXS and the results are related to coefficients of transport in thermodynamic equilibrium (water-self diffusion and proton mobility) as well as hydrodynamic transport (water permeation and electroosmotic drag) as obtained from NMR, impedance spectroscopic and permeation experiments. A model comprising (i) simple geometric effects, (ii) effects of chemical interactions and (iii) the formation of inner space charges provides a semiquantitative scheme which relates the microstructure to the transport properties of such types of polymers.

引用

页码：279 / 281

页数：3

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