Synthesis of Trifunctional Polyacetal Polyols with Various Main-Chain Structures and Properties of Chemically Recyclable Crosslinked Polyurethanes Prepared Therefrom

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  • IINUMA Atsushi
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui
  • HASHIMOTO Tamotsu
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui
  • URUSHISAKI Michio
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui
  • SAKAGUCHI Toshikazu
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui

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Other Title
  • 種々の三官能性ポリアセタールポリオールとそれによる分解・リサイクル性架橋ポリウレタンの合成
  • シュジュ ノ サン カンノウセイ ポリアセタールポリオール ト ソレニ ヨル ブンカイ ・ リサイクルセイ カケハシ ポリウレタン ノ ゴウセイ

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Description

Trifunctional polyacetal polyols with various main-chain structures were synthesized by polyaddition of hydroxyl-modified vinyl ethers (HBVE, HEVE, DEGV, CHMVE) in the presence of glycerine with an acid catalyst in tetrahydrofuran (THF) at 0°C for 4 h. Crosslinked polyacetal polyurethane elastomers were synthesized by the reaction of polyacetal polyols with 2,4-tolylene diisocyanate at 120°C for 15 h. The obtained polyacetal polyurethane elastomers had glass-transition temperatures depending on their main-chain structure (−58~10°C) and high thermal stability (274~312°C). The polyacetal polyurethane elastomers underwent smooth hydrolysis by treating them with aqueous acid in THF at room temperature to give the corresponding diol compounds for chemical recycling.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 72 (1), 7-15, 2015

    The Society of Polymer Science, Japan

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