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Pore formation in polyimide irradiated by high-energy ions and the properties of the obtained membranes |
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| Authors: | A. I. Vilensky V. V. Berezkin V. D. Sobolev K. G. Sabbatovsky Yu. K. Kochnev S. V. Vlasov V. R. Flid A. B. Vasilyev A. Yu. Kolesnikov V. V. Medvedev B. V. Mchedlishvili |
| Affiliation: | (1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia;(2) Lomonosov Academy of Fine Chemical Technology, pr. Vernadskogo 86, Moscow, 119571, Russia;(3) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia |
| Abstract: | The optimum conditions are determined for etching latent Kr tracks in sodium hypochlorite solution to prepare polyimide track membranes (PI-TMs) with cylindrical pores and the electrosurface properties of the membranes are investigated. The stability of the porous structure of PI-TMs is studied at elevated temperatures (up to 250°C) in aggressive media (pH 1–12). It is shown that the porous structure of PI-TMs is characterized by enhanced chemical and thermal stability. |
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