光グラフト重合を利用したフッ素系高分子電解質膜の開発 Development of Fluorinated Polymer Electrolyte Membranes Using Photografting Methods

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著者

    • 浅野 雅春 ASANO Masaharu
    • 日本原子力研究開発機構 量子ビーム応用研究部門 高導電性高分子膜材料研究グループ Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency (JAEA)
    • 陳 進華 CHEN Jinhua
    • 日本原子力研究開発機構 量子ビーム応用研究部門 高導電性高分子膜材料研究グループ Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency (JAEA)
    • 前川 康成 [他] MAEKAWA Yasunari
    • 日本原子力研究開発機構 量子ビーム応用研究部門 高導電性高分子膜材料研究グループ Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency (JAEA)
    • 吉田 勝 YOSHIDA Masaru
    • 日本原子力研究開発機構 量子ビーム応用研究部門 高導電性高分子膜材料研究グループ Environment and Industrial Materials Research Division, Quantum Beam Science Directorate, Japan Atomic Energy Agency (JAEA)

抄録

Polytetrafluoroethylene (PTFE)-based polymer electrolyte membranes were developed by radiation-grafting of styrene onto PTFE films and subsequent sulfonation. However, the PTFE is a radiation-degradation material. To overcome this disadvantage, we introduced the γ-crosslinked structure into the PTFE to increase its radiation-resistance before grafting. On the contrary, the UV method is very useful as an irradiation source for grafting. Under the UV irradiation, the mechanical properties of the PTFE films were almost not affected, while the radicals were generated on the surface of the film. The surface radicals initialed the styrene grafting, and the graft chains were readily propagated into the PTFE films. The resultant grafted films were sulfonated to obtain the polymer electrolyte membranes. Even through the degree of grafting was lower than 10%, the proton conductivity of the newly prepared electrolyte membranes can reach a value similar to Nafion. In comparison with γ-ray radiation grafting, the photografting technique is very simple and safe, and causes less damages to the membranes because the significant degradation of the PTFE main chains can be avoided.

収録刊行物

  • 膜 33(2), 63-69, 2008-03-01

    THE MEMBRANE SOCIETY OF JAPAN

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各種コード

  • NII論文ID(NAID)
    10021167313
  • NII書誌ID(NCID)
    AN0023215X
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03851036
  • NDL 記事登録ID
    9437534
  • NDL 雑誌分類
    ZR2(科学技術--生物学--生化学)
  • NDL 請求記号
    Z18-1127
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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