Polymer synthetic membranes — present state and perspectives - (in English)
Polymer synthetic membranes are used to separate the multicomponent gaseous, aqueous-organic, organic and solute/solvent mixtures, as well as the colloidal systems and suspensions. Their advantages are low cost of operation, minimized energy consumption, high effeciency and product quality. Membranes differing in properties and chemical nature are obtained from polysulphones, polyamides, poly- acetals, silicon rubber, polyvinyl chloride, polyvinylidene chloride, polytetrafluoroethylene, polyacrylonitrile, polyvinyl alcohol, polycarbonates and others Copolymers are also widely applied. Emphasis was made on the membranes made of ion-containing polymers used in electrochemical processes (water electrolyzers, fuel cells and other batteries) and in biotechnology.
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