Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans
AbstractA new functional biopolymer was synthesized through an ionic liquid-mediated homogeneous grafting of cinnamic anhydride to xylans. The ionic liquid used was 1-allyl-3-methylimidazolium chloride (AMIMCl) ionic liquid. Xylans with degrees of substitution (DS) between 0.11 and 0.57 were accessible in a completely homogeneous system by changing catalysts (NaOH, KOH and LiOH), time, reaction temperature, and cinnamic anhydride/xylan molar ratio. The chemical structure and the thermal stability of the derivatives were characterized by Fourier transform infrared spectroscopy (FT-IR), 13C-NMR spectroscopy, and thermogravimetry. The thermal stability of the derivatives was reduced compared with the original xylan. Possible applications of the cinnamic anhydride-acylated xylan derivatives include wet-end papermaking, organic–inorganic composite films, and hydrogels. View Full-Text
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Yang, G.; Zhou, H.; Chen, J.; Lyu, G.; Xia, Y.; Lucia, L.A. Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans. Int. J. Mol. Sci. 2017, 18, 2502.
Yang G, Zhou H, Chen J, Lyu G, Xia Y, Lucia LA. Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans. International Journal of Molecular Sciences. 2017; 18(12):2502.Chicago/Turabian Style
Yang, Guihua; Zhou, Huifang; Chen, Jiachuan; Lyu, Gaojin; Xia, Yuanyuan; Lucia, Lucian A. 2017. "Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans." Int. J. Mol. Sci. 18, no. 12: 2502.
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