IRの結晶化への飽和脂肪酸濃度の効果 CRYSTALLIZATION BEHAVIOR OF NATURAL RUBBER, PART3 EFFECT OF SATURATED FATTY ACID ON CRYSTALLIZATION OF CIS-1, 4-POLYISOPRENE

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著者

    • 松浦 亜衣 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 [他] 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
    • 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
    • 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), mixed with 0.4×10<sup>-2</sup>mol/kg_??_4.8×10<sup>-2</sup>mol/kg saturated fatty acid, was investigated by dilatometry at -25 and -15°C. The crystallization of IR was abruptly promoted by the addition of saturated fatty acids higher than 1.0×10<sup>-2</sup>mol/kg, such as stearic acid, palmitic acid and myristic acid, respectively, because of the formation of crystalline domain of the fatty acids. But, capric acid did not stimulate the crystallization of IR due to melting at above -25°C and soluble into IR. These demonstarate that the lowest concentration of fatty acids necessary for the acceleration of the crystallization rate of IR was 1.0×10<sup>-2</sup>mol/kg, when fatty acid formed crystalline domain dispersed in IR matrix. The crystallization of IR was influenced by not only equilibrium crystal structure, but also dynamic deposition of stearic acid from melt, which was confirmed by precooling of the rubber at 0, 10 and 30°C before crystallization at -25°C.

収録刊行物

  • 日本ゴム協會誌

    日本ゴム協會誌 72(7), 413-417, 1999-07-15

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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各種コード

  • NII論文ID(NAID)
    10002118748
  • 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
    4795972
  • 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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