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oai:docta.ucm.es:20.500.14352/437192023-08-25T14:24:13Zcom_20.500.14352_14col_20.500.14352_15

Barragán García, Vicenta María García Villaluenga, Juan Pedro Godino Gómez, María Paz Izquierdo Gil, María Amparo Ruiz Bauzá, Carlos Seoane Rodríguez, Benjamín 2023-06-20T03:31:37Z 2023-06-20T03:31:37Z 2009-05-15 0021-9797 10.1016/j.jcis.2009.02.015 https://hdl.handle.net/20.500.14352/43719 http://dx.doi.org/10.1016/j.jcis.2009.02.015 http://pdn.sciencedirect.com/ Solvent uptake, hydraulic and electroosmotic permeabilities, true cation transport number, effective fixed charge concentration, and limiting current values have been determined in aqueous LiCl solutions for three commercial cation-exchange membranes with different morphologies and similar electric properties. The differences found in the equilibrium and transport properties of the membranes have been analyzed on the basis of their different structures. The experimental results show that the membrane morphology has an influence on the effect that the presence of an electrolyte has in the solvent uptake and in the liquid permeation. Differences have also been found in the polarization concentration effects, and on the loss of the membrane selectivity with the increase of the electrolyte concentration. eng restricted access Experimental estimation of equilibrium and transport properties of sulfonated cation-exchange membranes with different morphologies journal article