Equilibrium and Transport Characteristics of Perfluorinated Cation-Exchange Membranes Containing Carboxyl Groups |
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Authors: | L E Ermakova M P Sidorova A A Kiprianova I A Savina |
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Institution: | (1) Department of Chemistry, St. Petersburg State University (Petrodvorets Branch), Universitetskii pr. 2, Petrodvorets, 198904, Russia |
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Abstract: | Equilibrium (the exchange capacity and moisture content) and transport (the ion transport numbers and the electrical conductance) properties of perfluorinated cation-exchange membranes containing carboxyl groups were studied as a function of pH and concentration of KCl solutions (10–4–1 M). Dissociation constants of carboxyl groups, adsorption potentials of K+ ions, transport numbers and mobilities of counterions in the membranes, concentrations of fixed ions, co- and counterions, as well as the Donnan potentials were calculated. |
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