Fibrillar structure of Nafion: Matching Fourier and real space studies of corresponding films and solutions

被引：306

作者：

Rubatat, L ^{[1
]}

Gebel, G ^{[1
]}

Diat, O ^{[1
]}

机构：

[1] CEA, Grp Polymeres Conducteurs Ion, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble 9, France

来源：

MACROMOLECULES | 2004年 / 37卷 / 20期

关键词：

D O I：

10.1021/ma049683j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Using both scattering and microscopy techniques, we have characterized the complex Nafion structure over a large range of length scales. Analysis of experimental data from dry membrane to aqueous dispersion suggests an intrinsic fibrillar structure. The fibrils correspond to elongated polymeric aggregates surrounded with the ionic charges. In the Nafion membrane, the fibrils are entangled and collapsed with a degree of orientation at the mesoscopic scale. Upon swelling and temperature treatment, these aggregates are hydrated and dispersed in a colloidal suspension.

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页码：7772 / 7783

页数：12

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