Sulfonated polybenzophenone/poly(arylene ether) block copolymer membranes for fuel cell applications

Takahiro Miyahara, Tetsuji Hayano, Soichi Matsuno, Masahiro Watanabe*, Kenji Miyatake

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)


Sulfonated polybenzophenone/poly(arylene ether) block copolymers were designed and synthesized via Ni-mediated coupling polymerization. The block copolymers were obtained as high-molecular-weight (M n = 70-110 kDa, M w = 150-230 kDa) with low polydispersity index (M w/M n = 2.0-2.3). The block copolymer membranes showed well-developed hydrophilic/hydrophobic phase separation and high proton conductivity and low gas permeability. The membrane showed better fuel cell performance and durability compared with those with Nafion, state-of-the-art proton conducting membrane.

Original languageEnglish
Pages (from-to)2881-2884
Number of pages4
JournalACS Applied Materials and Interfaces
Issue number6
Publication statusPublished - 2012 Jun 27
Externally publishedYes


  • block copolymers
  • fuel cells
  • poly(arylene ether)s
  • poly(benzophenone)s
  • polymer electrolyte membranes
  • proton conduction

ASJC Scopus subject areas

  • Materials Science(all)


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