Abstract:
PURPOSE: A proton-conducting polymer is provided to have a plurality of proton-conducting polymers, to have excellent dimensional stability, and to have high ion exchange capacity and hydrogen ion conductivity. CONSTITUTION: A proton-conducting polymer is represented by chemical formula 1. In the chemical formula 1: m is an integer from 0.01-0.99; n is an integer from 10-1,000; Y is a chemical bond, oxygen, or sulfur, independently; each of D and E is a divalent coupling group which comprises one or more selected from a substituted or unsubstituted C1-10 alkylene group, a substituted or unsubstituted C2-10 alkenylene group, a substituted or unsubstituted C6-20 arylene group, a sulfone group, or a carbonyl group; and Z is represented by chemical formula 2a.
Abstract:
PURPOSE: A poly(arylene ether) copolymer having a sulfonic acid group is provided to ensure high hydrogen ion conductivity and excellent mechanical properties due to high sulfonation degree and high average molecular weight. CONSTITUTION: A poly(arylene ether) copolymer having a sulfonic acid group is represented by chemical formula 3. A polymer electrolyte membrane comprises the poly(arylene ether) copolymer. The polymer electrolyte membrane further includes one or more polymers selected from the group consisting of polyimide, polyetherketone, polysulfone, polyethersulfone, polyetherethersulfone, polybenzimidazole, polyphenylene oxide, polyphenylene sulfide, polystyrene, polytrifluorostyrene sulfonic acid, polystyrenesulfonic acid, polyurethane, and branched sulfonated polysulfone ketone copolymers.