FIELD: applied electric chemistry; applicable in manufacture of diaphragms used for separation of electrode spaces in electrolyzers for decomposition of water into hydrogen and oxygen. SUBSTANCE: fibrous material is treated with solution containing CCl4 and TiCl4, taken in ratio of 2:1 for 70 h. Then, it is treated with vapors of wet ammonia for 1 h. Material after treatment is held in 7M solution of KOH or Na OH at 90 C for 40 min. EFFECT: higher efficiency. 1 tbl
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