Fabrication of a poly-electrolyte membrane based on cross-linked PTFE thin film by EB irradiation grafting

Akihiro Oshima*, Takaharu Miura, Saneto Asano, Shogo Ichizuri, L. I. Jingye, Shigetoshi Ikeda, Minoru Iida, Chihiro Matsuura, Yoneho Tabata, Yosuke Katsumura, Masakazu Washio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Polymer electrolyte fuel cell (PEFC) membranes based on cross-linked polytetrafluoroethylene (RX-PTFE) very thin film have been fabricated by radiation grafting with reactive styrene monomers using electron beam irradiation under nitrogen atmosphere at room temperature. The characteristic properties of obtained materials have been measured by differential scanning calorimetry, thermogravimetric analysis, FT-IR spectroscopy, etc. The glass transition temperatures and thermal decomposition temperatures of grafted materials strongly depend on the yields of styrene grafting onto base materials. The higher yields of grafting give lower thermal stability. The ion-exchange capacity of sulfonated materials is 3.0 mEquiv/g. The other properties of obtained membranes, such as chemical structure and rates of hydrogen gas transmission, are discussed.

Original languageEnglish
Pages (from-to)585-593
Number of pages9
JournalResearch on Chemical Intermediates
Issue number7-8
Publication statusPublished - 2005


  • Cross-linked fluorinated polymers
  • Ion-exchange capacity
  • PFEC membrane
  • Radiation-grafting

ASJC Scopus subject areas

  • Chemistry(all)


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