Synthesis of Novel UV-Curable Resin Using Castor Oil with 2-Acryloyloxyethyl Isocyanate

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  • UCHIDA Nozomu
    Department of Applied Chemistry, College of Science and Engineering, Kanto Gakuin University
  • KOUZAI Hiroaki
    Department of Applied Chemistry, College of Science and Engineering, Kanto Gakuin University

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Other Title
  • ヒマシ油と2-アクリロイルオキシエチルイソシアナートを用いた新規光硬化性樹脂の合成
  • ヒマシユ ト 2-アクリロイルオキシエチルイソシアナート オ モチイタ シンキ ヒカリ コウカセイ ジュシ ノ ゴウセイ

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Abstract

A novel UV-curable resin was synthesized from 2-acryloyloxyethyl isocyanate and branched Poly(lactic acid) (PLLA) using castor oil as initiator and obtained in relatively high yield (90%). Furthermore, the resin was cured by UV irradiation for 30 minutes. The obtained cured film showed elastomeric properties, because the glass transition temperature was −5°C and the rubbery plateau region started around 20°C, as measured by dynamic mechanical analysis. The thermal stability of the cured film was measured by TGA, weight loss started at 210°C. The Young’s modulus of mechanical properties was 317.9 MPa, taken from the stress-strain curve. The cured film was enzyme-degradable (max. 8.4%, 30 days) by porcine pancreas lipase. The SEM micrographs of the degradation cured film showed a number of holes on the film surface.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 72 (2), 76-81, 2015

    The Society of Polymer Science, Japan

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