| abstract |
PROBLEM TO BE SOLVED: To provide a proton conducting membrane having sufficient proton conductivity even at low humidity and low temperature. [Solution] A proton conductive membrane comprising a block copolymer having a structure in which the main chain skeleton of the ion conductive polymer segment (A) and the non-ion conductive polymer segment (B) has a structure in which an aromatic ring is covalently bonded with a bonding group, (i) the morphology of the membrane has a microphase separation structure; (ii) A proton conductive membrane characterized in that the ion conductive polymer segment (A) forms a continuous phase. [Selection] Figure 1 |