FIELD: membrane technology.
SUBSTANCE: present invention relates to a method for producing a composite anion-exchange membrane. The method includes placing the membrane in working solutions, one of which is a monomer solution, the other is a solution of an oxidizing agent, and washing, and an anion-exchange heterogeneous membrane consisting of polyethylene and an anion-exchange resin with positively charged nitrogen-containing fixed groups is used as the initial membrane, whereas the membrane is placed first into an oxidizing agent solution, which is 1 M ammonium persulfate, and kept for 60 minutes, and then into a monomer solution, which is an aqueous 0.1 M solution of 2-aminobenzenesulfonic acid, and kept for 48 hours, and the membrane is washed in deionized water.
EFFECT: increase in electrical conductivity and a decrease in the diffusion permeability of membranes.
2 cl, 1 dwg, 2 tbl, 6 ex
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