Abstract
The effects of the composition and concentration of an external solution on the swelling degree of polystyrene-based ion exchangers crosslinked with different amounts of divinylbenzene have been analyzed within the heterophase model of polymer gel structure. It has been confirmed experimentally that, upon variations in the composition of the external solution, the swelling degree of polymers is determined by the content of “sorbed” water alone. Therewith, the volume of the external solution incorporated into the swollen polymer remains constant; i.e., it depends neither on an ionic form of an ion exchanger nor the concentration and composition of the external solution, but rather depends linearly on the polymer crosslinking degree. An algorithm has been proposed for calculating the volume of water in a polymer gel and some quantitative estimates have been presented.
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Original Russian Text © M.G. Tokmachev, N.B. Ferapontov, I.O. Agapov, Kh.T. Trobov, 2018, published in Kolloidnyi Zhurnal, 2018, Vol. 80, No. 1, pp. 96–101.
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Tokmachev, M.G., Ferapontov, N.B., Agapov, I.O. et al. The Effects of Polymer Properties and Solution Composition on the Distribution, Properties, and Amount of Water in Swollen Ion Exchangers. Colloid J 80, 91–95 (2018). https://doi.org/10.1134/S1061933X1801012X
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DOI: https://doi.org/10.1134/S1061933X1801012X