Ultrathin proton conductive membrane based on polymer nanosheetassembly

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We prepared ultrathin proton conductive membrane based on polymer nanosheet assembly. The polymer nanosheet was prepared by acryamide-based copolymer, which contains sulfonic acid as a proton conductive group. The polymer nanosheet showed the proton conductivity of 10^<-6> S/cm at room temp, RH=100%. Moreover, the conductivity of 10^<-2> S/cm was achieved using acid-based type polymer nanosheet assembly.