Existence of the Schroeder paradox with a Nafion membrane? Small-angle x-ray scattering analysis

Authors
Cornet, N Gebel, G de Geyer, A
Citation
N. Cornet et al., Existence of the Schroeder paradox with a Nafion membrane? Small-angle x-ray scattering analysis, J PHYS IV, 8(P5), 1998, pp. 63-68
Citations number
11
Categorie Soggetti
Physics
Journal title
JOURNAL DE PHYSIQUE IV
ISSN journal
11554339 → ACNP
Volume
8
Issue
P5
Year of publication
1998
Pages
63 - 68
Database
ISI
SICI code
1155-4339(199810)8:P5<63:EOTSPW>2.0.ZU;2-3
Abstract
Water uptake of perfluorinated ionomer membranes (Nafion(R)) is studied by small angles X-rays scattering (SAXS). The purpose is to determine if these membranes are subjected to the Schroeder paradox. This paradox is defined as a difference of water uptake for a membrane immersed in water or balance d in presence of a satured vapor pressure. Results from SAXS measurements i ndicate that the appearance of the paradox is dependent on the pretraitemen t of the membrane because of its water uptake memory.