<b>Preparation and Research of Cured Resin from Biomass </b>

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  • NAKAGAWA Kaori
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University
  • OYAMA Toshiyuki
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University
  • TAKAHASHI Akio
    Department of Advanced Materials Chemistry, Faculty of Engineering, Yokohama National University
  • NAKAMURA Yoshitoshi
    Department of Life System, Institute of Technology and Science, University of Tokushima
  • OKABE Yoshiaki
    Materials Research Laboratory, Hitachi, Ltd.
  • KAGAWA Hiroyuki
    Materials Research Laboratory, Hitachi, Ltd.

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Other Title
  • <b>バイオマス由来エポキシ樹脂硬化物の作製及び検討 </b>
  • バイオマス由来エポキシ樹脂硬化物の作製及び検討
  • バイオマス ユライ エポキシ ジュシ コウカブツ ノ サクセイ オヨビ ケントウ

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SynopsisModel reactions were carried out using coniferyl alcohol (CA) which was one of the unit structures for lignin(L). Firstly, an epoxidized CA (ECA) was synthesized by reaction of CA with epichlorohydrin. The 1H-NMR spectrum showed that not only the phenolic hydroxyl groups but also the alcoholic hydroxyl groups were epoxidized. And then, it was confi rmed that epoxy groups of ECA could react with hydroxyl groups of CA according to expectation. From above mentioned model reactions, the possibility of the cured epoxy resin based on about 100% biomass was suggested. After the confi rmation of the reactivity of hydroxyl group of CA with epoxy group of phenyl glycidyl ether (PGE), the curing reaction of epoxy resins using bisphenol A diglycidyl ether (DGEBA), by L was examined. The cured epoxy resins showed the glass transition temperature of around 151℃ which was 20℃ higher than that of the conventional DGEBA cured by petrochemical phenol novolac and the residue after heating at 500℃ by thermo gravimetric analysis was also 10% increased.(Received December 9, 2010 ; Accepted January 25, 2011)

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