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Heterogeneous ion exchange membranes were coated with hydrophilic charged layers. The cation exchange membrane was coated with polyvinylalcohol, crosslinked by a reactive dye containing sulfonic groups. The anion exchange membrane was coated by ground anion exchange particles embedded in polyvinylalcohol crosslinked by hexamethoxymethylmelamin. The coating substantially decreased polarisation on...
Ion-conducting spacers were prepared by applying an ion-exchange coating to commercially available polypropylene netting. Homogeneous and heterogeneous types of coating were used. Homogeneous anion-exchange coating consisted of bromomethylated and aminated polysulfone, homogeneous cation-exchange coating of sulfonated polysulfone. All heterogeneous coatings consisted of ground ion-exchange resin,...
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