Abstract
New composite membranes based on commercial perfluorinated Nafion-115 membrane and cross-linked sulfonated polystyrene were synthesized and investigated. The membranes were prepared by radical polymerization of styrene in the presence of a cross-linking agent divinylbenzene in Nafion polymer matrix and subsequent sulfonation of formed polystyrene. The membranes containing approximately 5 and 10 wt % of cross-linked polystyrene with ion-exchange capacity of 1.1 to 1.3 mg-eq/g were obtained. Modification with sulfonated polystyrene leads to an increase in the moisture content and proton conductivity of membranes in the humidity range of 15 to 100 RH.
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Original Russian Text © A.A. Arslanova, E.A. Sanginov, Yu.A. Dobrovol’skii, 2018, published in Elektrokhimiya, 2018, Vol. 54, No. 3, pp. 368–374.
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Arslanova, A.A., Sanginov, E.A. & Dobrovol’skii, Y.A. New Composite Proton-Conducting Membranes Based on Nafion and Cross-Linked Sulfonated Polystyrene. Russ J Electrochem 54, 318–323 (2018). https://doi.org/10.1134/S1023193518030035
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DOI: https://doi.org/10.1134/S1023193518030035