ポリウレタン反応で生成する結合種と物性への触媒の影響 EFFECT OF CATALYSTS ON STRUCTURE AND PROPERTIES OF POLYURETHANES, PART 1 EFFECT OF CATALYSTS ON FORMATlON OF POLAR GROUPS IN URETHANE REACTION

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著者

    • 古川 睦久 FURUKAWA Mutsuhisa
    • Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University
    • 宮本 一隆 MIYAMOTO Kazutaka
    • Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University Department of Materials Science and Engineering, Faculty of Engineering, Nagasaki University

抄録

The kinetics of the model reaction during phenyl isocyanate, n-butanol, and polymer alcohol at 65°C under the absence and presence of catalysts were investigated. Effects of the catalysts on hard segment distribution and mechanical properties of polyesterurethane elastomers were also studied. Catalysts used were dibutyltin dilaurate (DBTL) and 1, 4-diazabicyclo-(2, 2, 2) octane (DABCO). Polyurethanes were prepared from poly (ethylene adipate) (PEA), TDI, and 1, 4-butanediol (BD) by one-shot method. From the results of kinetic study by using GPC, it is suggested that DABCO accelerates the urethane and allophanate formation and DBTL more urethane than allophanate formation in bulk polymerization. The PUEs prepared under presence of the catalysts contained more trimer [-(TDI- BD)<sub>3</sub>-] than the PUEs under absence of catalysts. Hard segment length of PUEs prepared under the presence of DABCO have longer than other PUEs. Mechanical properties of the PUEs affected by a kind of catalyst used.

収録刊行物

  • 日本ゴム協會誌  

    日本ゴム協會誌 72(2), 66-73, 1999-02-15 

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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各種コード

  • NII論文ID(NAID)
    10002118021
  • 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
    4648010
  • 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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