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Official Journal of the Japan Wood Research Society

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Reaction behavior of wood in an ionic liquid, 1-ethyl-3-methylimidazolium chloride

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Abstract

Reaction of Japanese beech (Fagus crenata) in an ionic liquid, 1-ethyl-3-methylimidazolium chloride ([C2mim][Cl]), which can dissolve cellulose, was investigated. Although both lignin and polysaccharides such as cellulose and hemicelluloses can be liquefied at a treatment temperature of around 100°C, the liquefaction of polysaccharides mainly occurs at the beginning of the treatment with [C2mim][Cl]. Cellulose crystallinity in the wood was gradually broken down as the treatment continued. The solubilized polymers were depolymerized to low molecular weight compounds. The results indicate that [C2mim][Cl] is an effective solvent and reagent for the liquefaction of wood components and subsequent depolymerization of them.

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Correspondence to Hisashi Miyafuji.

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Miyafuji, H., Miyata, K., Saka, S. et al. Reaction behavior of wood in an ionic liquid, 1-ethyl-3-methylimidazolium chloride. J Wood Sci 55, 215–219 (2009) doi:10.1007/s10086-009-1020-x

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Key words

  • Wood
  • Ionic liquid
  • 1-Ethyl-3-methylimidazolium chloride
  • Reaction behavior
  • Depolymerization