シスポリイソプレンに混合した脂肪酸の影響 CRYSTALLIZATION BEHAVIOR OF NATURAL RUBBER, PART 1. EFFECT OF MIXED FATTY ACID ON THE CRYSTALLIZATION OF CIS-1, 4 POLYISOPRENE

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著者

    • 西山 直幸 NISHIYAMA Naoyuki
    • Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology
    • 松浦 亜衣 [他] MATSUURA Ai
    • Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology
    • 鹿久保 隆志 KAKUBO Takashi
    • Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology
    • 田中 康之 TANAKA Yasuyuki
    • Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology Division of Applied Chemistry, Faculty of Technology Tokyo University of Agriculture and Technology

抄録

Crystallization behavior of synthetic <i>cis</i>-1, 4 polyisoprene (IR), used as a model for natural rubber, was investigated by dilatometry at -25°C. The rate of crystallization increased in the presence of fatty acid. The acceleration effect of fatty acid on the rate of crystallization was explained with respect to the transition temperature, Tc, at which fatty acid crystallized during cooling after melting at 120°C. The crystallization rate of IR was accelerated at Tc. A similar dependence of crystallization behavior of IR on Tc of fatty acid was also shown for a mixture of saturated fatty acids or saturated fatty acid esters and unsaturated fatty acids. A mixture of stearic acid and methyl linoleate also promoted the crystallization of IR, despite that stearic acid was not miscible with methyl linoleate. The most rapid crystallization of IR was found when the ratio of stearic acid to methyl linoleate was 1:3, being consistent with the ratio of saturated to unsaturated fatty acids in natural rubber.

収録刊行物

  • 日本ゴム協會誌

    日本ゴム協會誌 72(5), 288-293, 1999-05-15

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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各種コード

  • NII論文ID(NAID)
    10002118444
  • NII書誌ID(NCID)
    AN00189720
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0029022X
  • NDL 記事登録ID
    4723206
  • 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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