Korea Institute of Science and Technology

Youlchon Chemical Co., Ltd.

Jong Hyub Park

So Young Lee

Hyoung-Juhn Kim

Yong Kim

Jonghee Han

Jong Hyun Jang

Bohyun Kim

Sun-Hee Choi

As a polymerization solvent for use in the polymerization of monomers for a hydrocarbon-based electrolyte polymer, a mixed solvent containing a first solvent, such as dimethyl acetamide, N-methylpyrrolidone or dimethyl sulfoxide, and an alcohol as a second solvent is used instead of a dimethyl acetamide/toluene mixture or dimethyl acetamide alone according to the related art. By using the mixed solvent, it is possible to obtain a molecular weight of polymer equal to or higher than the molecular weight of polymer obtained from the method according to the related art, even when the reaction time is reduced. Therefore, the disclosed method and polymerization solvent is very useful for a mass production of a hydrocarbon-based electrolyte polymer.

Method for synthesizing hydrocarbon electrolytes polymer and polymerization solvent used therein

Disclosed is an electrolyte membrane for a fuel cell including a polymer blend of a sulfonated polyethersulfone copolymer, hydroxyl group-containing polyethersulfone copolymer and a hydroxyl group-containing sulfonated polyethersulfone copolymer.

Electrolyte membrane for fuel cell comprising polymer blend, and membrane-electrode assembly and fuel cell comprising the same

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Ansan-si, South Korea

Jong Hyub Park