Selective ion transport in hydrophobized anion-exchange membranes

Authors
Peregonchaya, OV Kotov, VV Selemenev, VF
Citation
Ov. Peregonchaya et al., Selective ion transport in hydrophobized anion-exchange membranes, RUSS J PH C, 75(10), 2001, pp. 1712-1715
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
75
Issue
10
Year of publication
2001
Pages
1712 - 1715
Database
ISI
SICI code
0036-0244(200110)75:10<1712:SITIHA>2.0.ZU;2-N
Abstract
The hydration and selectivity characteristics of MA-40 anion-exchange membr anes saturated with lauric acid and coated with polystyrenesulfonate were e xamined. The intermolecular interaction and the state of water in the membr anes were studied by IR spectroscopy. Measurements of the limiting wetting angle show that the surface layer of the membranes is hydrophobized. In the separation of two-component mixtures of electrolytes by electrodialysis, t he membranes exhibited a higher selectivity with respect to less hydrated i ons.