Abstract
The effect of temperature-induced morphological changes on the electrochemical and physicochemical properties of the heterogeneous sulfo cation-exchange membrane MK-40 in aqueous, alkaline, and acidic media is subjected to comparative analysis. The deviation between the surface and volume microstructure of swollen membrane samples after their chemical conditioning and thermochemical treatment are visualized by a scanning electron microscope. The porosity and the fraction of the ion-exchange component in membranes subjected to heating in water and aggressive media are observed to increase more noticeably in their surface layer as compared with their volume. The maximum effect thus modified structural characteristics on the transport (conductivity, diffusion permeability, selectivity) and physicochemical (exchange capacity, water content, density, linear sizes) properties is observed for MK-40 membrane samples when heated in a sulfuric acid solution. The effect of thermal destruction of inert polymers (divinylbenzene, caprone) involved in the membrane composition on the transport characteristics is revealed.
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References
Tulupov, P.E., Stoikost’ ionoobmennykh materialov (Stability of Ion Exchange Materials), Moscow: Khimiya, 1984.
Kotova, D.L. and Selemenev, V.F., Termicheskii analiz ionoobmennykh materialov (Thermal Analysis of Ion Exchange Materials), Moscow: Nauka, 2002.
Polyanskii, N.G. and Tulupov, P.E., Usp. Khim., 1971, vol. 11, p. 2250.
Polyanskii, N.G., in Kataliz v vysshei shkole. Vyp. 1, ch. 2 (Catalysis in Higher School, no. 1, part 2), Moscow: MGU, 1962, p. 242.
Gnusin, N.P. and Grebenyuk, V.D., Elektrokhimiya granulirovannykh ionitov (Electrochemistry of Granulated Ionites), Kiev: Nauk. dumka, 1972.
Berezina, N., Gnusin, N., Dyomina, O., and Timofeyev, S., J. Membr. Sci., 1994, vol. 86, p. 207.
Berezina, N.P., Kononenko, N.A., Dyomina, O., and Gnusin, N.P., Adv. Colloid Interface Sci., 2008, vol. 139, p. 3.
Urusov, K.Kh. and Pashkov, A.B., in Ionoobmennye membrany v elektrodialize (Ion Exchange Membranes in Electrodialysis), Leningrad: Khimiya, 1970, p. 48.
Henry, J. L. and Garton, A., Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.), 1989, vol. 30, no. 1, p. 183.
Belova, E.I., Lopatkova, G.Y., Pismenskaya, N.D., Nikonenko, V., Larchet, C., and Pourcelly, G., J. Phys. Chem. B, 2006, vol. 110, p. 13458.
Pis’menskaya, N.D., Nikonenko, V.V., Mel’nik, N.A., Shevtsova, K.A., Dammak, L., and Larchet, C., Membr. Membr. Tekhnol., 2011, vol. 1, p. 201.
Vasil’eva, V.I., Kranina, N.A., Malykhin, M.D., Akberova, E.M., and Zhil’tsova, A.V., J. Surf. Invest.: X-ray, Synchrotron Neutron Tech., 2013, vol. 7, no. 1, p. 144.
Vasil’eva, V.I., Akberova, E.M., Zhil’tsova, A.V., Chernykh, E.I., Sirota, E.A., and Agapov, B.L., J. Surf. Invest.: X-ray, Synchrotron Neutron Tech., 2013, vol. 7, no. 5, p. 833.
GOST (State Standard) 10899-75: Ionites. Method of determination of resistance of ion-exchange membranes towards chemical media, 1977.
Berezina, N.P., Elektrokhimiya membrannykh sistem (Electrochemistry of Membrane Systems), Krasnodar: Kuban. Gos. Un-t, 2009.
Shaposhnik, V.A., Emel’yanov, D.E., and Drobysheva, I.V., Kolloidn. Zh., 1984, vol. 46, p. 820.
Gnusin, N.P., Berezina, N.P., Demina, O.A., and Ivina, O.P., Zh. Fiz. Khim., 1994, vol. 68, p. 565.
Gnusin, N.P., Zabolotskii, V.I., Nikonenko, V.V., and Meshechkov, A.I., Zh. Fiz. Khim., 1980, vol. 54, p. 1518.
Zabolotskii, V.I. and Nikonenko, V.V., Perenos ionov v membranakh (Ion Transport in Membranes), Moscow: Nauka, 1996.
Berezina, N.P., Kononenko, N.A., Demina, O.A., and Gnusin, N.P., Polymer. Sci. Ser. A, 2004, vol. 46, p. 672.
Reed, S.J.B. Electron Microprobe Analysis and Scanning Electron Microscopy in Geology. New York: Cambridge University, 2005 (translated into Russian).
Sirota, E.A., Kranina, N.A., Vasil’eva, V.I., and Selemenev, V.F., Vestn. VGU, Ser.: Khimiya. Biologiya. Farmatsiya, 2011, no. 2, p. 53.
Sirota, E.A., Vasil’eva, V.I., and Akberova, E.M., Computer Program State Registration Certificate no. 2012619722, 2012.
Yudin, M.F., Selivanov, M.N., Tishchenko, O.F., and Skorokhodov, A.I., in Osnovnye terminy v oblasti metrologii: Slovar’ sprav., (Basic Terms in the Field of Metrology: Dictionary Reference Book), Tarbeev, Yu.V., Ed., Moscow: Standart., 1989.
Uglyanskaya, V.A., Chikin, G.A., Selemenev, V.F., and Zav’yalova, T.A., Infrakrasnaya spektroskopiya ionoobmennykh materialov (IR Spectroscopy of Ion Exchange Materials), Voronezh: VGU, 1989.
Gnusin, N.P., Berezina, N.P., Demina, O.A., and Kononenko, N.A., Russ. J. Electrochem., 1996, vol. 32, p. 154.
Greben’, V.P. and Kovarskii, N.Ya., Zh. Fiz. Khim., 1978, vol. 52, p. 2304.
Zabolotskii, V.I., Loza, S.A., and Sharafan, M.V., Russ. J. Electrochem., 2005, vol. 41, p. 1053.
Berezina, N.P., Timofeev, S.V., and Kononenko, N.A., J. Membr. Sci., 2002, vol. 209, p. 509.
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Original Russian Text © V.I. Vasil’eva, E.M. Akberova, V.A. Shaposhnik, M.D. Malykhin, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 8, pp. 875–883.
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Vasil’eva, V.I., Akberova, E.M., Shaposhnik, V.A. et al. Electrochemical properties and structure of ion-exchange membranes upon thermochemical treatment. Russ J Electrochem 50, 789–797 (2014). https://doi.org/10.1134/S102319351408014X
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DOI: https://doi.org/10.1134/S102319351408014X