超分子的水素結合ネットワークを用いた熱可逆架橋ゴムの開発 Development of Thermoreversible Crosslinking Rubber using Supramolecular Hydrogen Bonding Networks

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著者

    • 知野 圭介 CHINO Keisuke
    • 横浜ゴム(株)研究本部研究部第1研究グループ Research & Development Center, The Yokohama Rubber, Co. Ltd.

抄録

Thermoreversible Hydrogen-bond crosslinking isoprene rubber (THC-IR) was synthesized by modification of isoprene rubber (IR) with maleic anhydride followed by the addition of 3-amino-1, 2, 4-triazole(ATA), in solid phase. The mechanical properties of the resulting rubber were more similar to the sulfur-vulcanized rubber than general thermoplastic elastomers (<i>ex</i>. SEBS). Although the tensile strength and elongation at break were lower than those of a corresponding sulfur-cured rubber, the moduli were as high as those of sulfur-cured rubber. Reforming could be repeated more than 10 times without significantly changing its mechanical properties. Differential scanning calorimetry (DSC) revealed that the superior mechanical properties and good recyclability are attributable to the strong hydrogen bonding. The TRC-IR showed an endothermic transition peak at around 185°C on the DSC chart, indicating cleavage of the hydrogen bonding. Moreover, small angle X-ray scattering (SAXS) clarified the crosslinking point is aggregated structure of ca. 5nm by supramolecular hydrogen bonding. A hypothetical model was suggested which comprises strong crosslinking moiety formed by the seven points hydrogen bonds. The thermoreversible crosslinking system could be applied to EPM and AEM, as well. These rubbers also showed superior mechanical properties as well as excellent recyclability.

収録刊行物

  • 日本ゴム協會誌

    日本ゴム協會誌 78(3), 106-110, 2005-03-15

    一般社団法人 日本ゴム協会

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各種コード

  • NII論文ID(NAID)
    10013818630
  • NII書誌ID(NCID)
    AN00189720
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0029022X
  • NDL 記事登録ID
    7279257
  • NDL 雑誌分類
    ZP17(科学技術--化学・化学工業--高分子化学・高分子化学工業--ゴム・プラスチックス)
  • NDL 請求記号
    Z17-125
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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