A catalyst-coated membrane, comprising: (a) a film comprising a random copolymer of Formula wherein X is an anion selected from iodide, bromide, chloride, fluoride, hydroxide, carbonate, bicarbonate, sulfate, tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, bis(trifluoromethane)sulfonamide, and any combination thereof, wherein X counterbalances a positive charge in the polymer; R 1 and R 2 are each independently selected from absent and methyl, provided that R 1 and R 2 are not both absent, or both methyl; provided that when one of R 1 or R 2 is methyl, the other is absent; and provided that when R 1 or R 2 is methyl, the nitrogen to which the methyl is connected to is positively charged, a, b, and c are mole percentages, wherein a is from 0 mole % to 45 mole %, b+c is 55 mole % to 100 mole %, b and c are each more than 0 %, and a+b+c=100%, and (b) a catalyst coating on the film, the catalyst coating comprising from 5 % to 35 % by weight of the copolymer of Formula and from 10 % to 95 % by weight of a catalyst selected from carbon-supported Pt, alkaline-stable metal-supported Pt, non-supported Pt, carbon-supported Pt alloy, alkaline-stable metal-supported Pt alloy, non-supported Pt alloy, and any combination thereof; Ag, Ni, alloys thereof, and any combination thereof; a doped graphene; and a doped carbon nanotube. (a) a film comprising a random copolymer of Formula wherein X is an anion selected from iodide, bromide, chloride, fluoride, hydroxide, carbonate, bicarbonate, sulfate, tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, bis(trifluoromethane)sulfonamide, and any combination thereof, wherein X counterbalances a positive charge in the polymer; R 1 and R 2 are each independently selected from absent and methyl, provided that R 1 and R 2 are not both absent, or both methyl; provided that when one of R 1 or R 2 is methyl, the other is absent; and provided that when R 1 or R 2 is methyl, the nitrogen to which the methyl is connected to is positively charged, a, b, and c are mole percentages, wherein a is from 0 mole % to 45 mole %, b+c is 55 mole % to 100 mole %, b and c are each more than 0 %, and a+b+c=100%, and X is an anion selected from iodide, bromide, chloride, fluoride, hydroxide, carbonate, bicarbonate, sulfate, tetrakis(3,5-bis(trifluoromethyl)phenyl)borate, bis(trifluoromethane)sulfonamide, and any combination thereof, wherein X counterbalances a positive charge in the polymer; R 1 and R 2 are each independently selected from absent and methyl, provided that R 1 and R 2 are not both absent, or both methyl; provided that when one of R 1 or R 2 is methyl, the other is absent; and provided that when R 1 or R 2 is methyl, the nitrogen to which the methyl is connected to is positively charged, a, b, and c are mole percentages, wherein a is from 0 mole % to 45 mole %, b+c is 55 mole % to 100 mole %, b and c are each more than 0 %, and a+b+c=100%, and (b) a catalyst coating on the film, the catalyst coating comprising from 5 % to 35 % by weight of the copolymer of Formula and from 10 % to 95 % by weight of a catalyst selected from carbon-supported Pt, alkaline-stable metal-supported Pt, non-supported Pt, carbon-supported Pt alloy, alkaline-stable metal-supported Pt alloy, non-supported Pt alloy, and any combination thereof; Ag, Ni, alloys thereof, and any combination thereof; a doped graphene; and a doped carbon nanotube.