Proton-conductive aromatic ionomers containing highly sulfonated blocks for high-temperature-operable fuel cells

Byungchan Bae, Takeshi Yoda, Kenji Miyatake, Hiroyuki Uchida, Masahiro Watanabe

Research output: Contribution to journalArticlepeer-review

223 Citations (Scopus)

Abstract

"Chemical Equation Presented" Segregation is a key theme of this film: Poly(arylene ether sulfone ketone) multiblock membranes containing highly sulfonated hydrophilic blocks were prepared by postsulfonation. High local concentrations of sulfonic acid groups within the hydrophilic blocks enhanced the phase separation of the two block types (see picture), and the high interconnectivity of the rodlike hydrophilic aggregates led to high proton conductivity even at low humidity.

Original languageEnglish
Pages (from-to)317-320
Number of pages4
JournalAngewandte Chemie - International Edition
Volume49
Issue number2
DOIs
Publication statusPublished - 2010 Jan 8
Externally publishedYes

Keywords

  • Block copolymers
  • Conducting materials
  • Fuel cells
  • Membranes
  • Sulfonation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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