Abstract
It has been shown that the differential coefficients of the diffusion permeability of MK-40 and Nafion 425 sulfonic cation-exchange membranes to solutions of diverse electrolytes can be calculated within the framework of the theory of generalized conductivity of structurally inhomogeneous membranes with the use of model transport-structural parameters. The calculation has been performed on the basis of experimentally measured concentration dependences of the specific electrical conductivities and diffusion fluxes of electrolytes through membranes into water. The results of the model calculation are in satisfactory agreement with the data obtained by an independent method without resorting to notions of the structural organization of a membrane.
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Original Russian Text © O.A. Demina, N.A. Kononenko, I.V. Falina, A.V. Demin, 2017, published in Kolloidnyi Zhurnal, 2017, Vol. 79, No. 3, pp. 259–269.
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Demina, O.A., Kononenko, N.A., Falina, I.V. et al. Theoretical estimation of differential coefficients of ion-exchange membrane diffusion permeability. Colloid J 79, 317–327 (2017). https://doi.org/10.1134/S1061933X17030048
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DOI: https://doi.org/10.1134/S1061933X17030048