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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 46, 1982 - Issue 1
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Original Articles

Neutron incoherent scattering law for restricted diffusion inside a volume with an anisotropic shape

Application to the problem of water absorbed in nafion® membranes

A.J. Dianoux Institut Laue-Langevin, 156X, 38042, Grenoble, Cedex, France
,
M. Pineri Equipe de Physico-Chimie Moléculaire, DRF-PHS-CENG 85X, 38041, Grenoble, Cedex, France
&
F. Volino Equipe de Physico-Chimie Moléculaire, DRF-PHS-CENG 85X, 38041, Grenoble, Cedex, FranceView further author information
Pages 129-137 | Received 06 Oct 1981, Accepted 23 Nov 1981, Published online: 22 Aug 2006
 
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Abstract

The neutron incoherent scattering law for diffusion inside a finite volume with an anisotropic shape is studied, and applied to the problem of water mobility in an acid nation® membrane containing c. 15 per cent water by weight. Both theoretical considerations and experiment show that the water molecules are diffusing practically as fast as in bulk water within roughly isotropic volumes of c. 10 Å in diameter.

Additional information

Notes on contributors

F. Volino

Member of C.N.R.S.

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