| abstract |
The present invention relates to a branched multiblock polybenzimidazole-benzamide copolymer and a method for preparing the same, and in particular, to a branched multiblock polybenzimidazole-benzamide copolymer having a repeating unit represented by Formula 1 Manufacturing method, electrolyte membrane using the branched multi-block copolymer, a viscous electrolyte paste / gel and a method for manufacturing thereof, membrane electrode assembly (MEA) using the electrolyte membrane and a viscous electrolyte paste / gel And a manufacturing method and a fuel cell to which the membrane-electrode assembly is applied.n n n The electrolyte membrane according to the present invention not only has high hydrogen ion conductivity in a wide temperature range but also has excellent mechanical properties, chemical resistance and thermal stability, and effectively controls degradation of membrane properties due to phosphate doping and high hydrogen even at low phosphate doping levels. There is an effect of implementing the ion conductivity, the viscosity electrolyte paste / gel according to the present invention has the effect of uniformly coating the electrode to improve the driving performance of the fuel cell.n n n n Brancher, Branched Multiblock Copolymer, Polybenzimidazole-benzamide, Electrolyte Membrane, Electrolyte Paste / Gel, Fuel Cell, Hydrogen Ion Conductivity |