Journal of Polymers and the Environment

, Volume 21, Issue 2, pp 512–519 | Cite as

Preparation of Galactomannan-Based Materials Compatibilized with Ionic Liquids

  • Jun-ichi Kadokawa
  • Takeshi Kato
  • Miwa Setoyama
  • Kazuya Yamamoto
Original Paper


This paper reports the preparation of galactomannan/ionic liquid composite materials from the corresponding ion gels. Three kinds of galactomannans, that is, fenugreek gum (FG), guar gum (GG), and locust bean gum (LBG) and an ionic liquid of 1-butyl-3-methylimidazolium chloride (BMIMCl) were used. When the galactomannan/BMIMCl gels were immersed in ethanol, followed by dryness under reduced pressure, the galactomannan/BMIMCl composite materials were obtained. The crystalline structures of galactomannans in the materials were evaluated by the powder X-ray diffraction measurement. The mechanical property of the FG/BMIMCl composite material under compressive mode was superior compared with the GG and LBG/BMIMCl composite materials. Then, FG films compatibilized with polymeric ionic liquids (PILs) were also prepared by in situ radical polymerization of polymerizable ionic liquids, 1-(3-acryloyloxypropyl)-3-vinylimidazolium bromide and 1-methyl-3-vinylbenzylimidazolium chloride by AIBN in mixtures of FG with BMIMCl. The mechanical properties of the resulting films were affected by the FG/PIL ratios as well as the unit ratios in PILs.


Composite Galactomannan Film Ionic liquid 


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Jun-ichi Kadokawa
    • 1
  • Takeshi Kato
    • 1
  • Miwa Setoyama
    • 1
  • Kazuya Yamamoto
    • 1
  1. 1.Graduate School of Science and EngineeringKagoshima UniversityKagoshimaJapan

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