| abstract |
The present invention relates to a branched sulfonated multiblock copolymer and an electrolyte membrane using the same, in particular, a branched sulfonated multiblock copolymer comprising a repeating unit represented by the formula (1), a method for preparing the same, and a hydrogenated branched sulfonated compound A multi-block copolymer, a branched sulfonated multi-block copolymer electrolyte membrane, and a fuel cell to which the branched sulfonated multi-block copolymer electrolyte membrane is applied.n n n The electrolyte membrane according to the present invention not only has high hydrogen ion conductivity but also has excellent mechanical properties and is chemically stable, and can control the distribution, position, number, and the like of sulfonic acid groups in the polymer skeleton, and the membrane according to the increase of sulfonic acid groups. There is no deterioration in physical properties, thereby effectively producing a thin film.n n n n Brancher, Branched Sulfonated Multiblock Copolymer, Electrolyte Membrane, Fuel Cell, Hydrogen Ion Conductivity |