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Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans
A 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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751105/ https://www.ncbi.nlm.nih.gov/pubmed/29168768 http://dx.doi.org/10.3390/ijms18122502 |
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author | Yang, Guihua Zhou, Huifang Chen, Jiachuan Lyu, Gaojin Xia, Yuanyuan Lucia, Lucian A. |
author_facet | Yang, Guihua Zhou, Huifang Chen, Jiachuan Lyu, Gaojin Xia, Yuanyuan Lucia, Lucian A. |
author_sort | Yang, Guihua |
collection | PubMed |
description | A 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), (13)C-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. |
format | Online Article Text |
id | pubmed-5751105 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-57511052018-01-08 Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans Yang, Guihua Zhou, Huifang Chen, Jiachuan Lyu, Gaojin Xia, Yuanyuan Lucia, Lucian A. Int J Mol Sci Article A 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), (13)C-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. MDPI 2017-11-23 /pmc/articles/PMC5751105/ /pubmed/29168768 http://dx.doi.org/10.3390/ijms18122502 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Guihua Zhou, Huifang Chen, Jiachuan Lyu, Gaojin Xia, Yuanyuan Lucia, Lucian A. Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title | Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title_full | Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title_fullStr | Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title_full_unstemmed | Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title_short | Ionic Liquid-Mediated Homogeneous Esterification of Cinnamic Anhydride to Xylans |
title_sort | ionic liquid-mediated homogeneous esterification of cinnamic anhydride to xylans |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751105/ https://www.ncbi.nlm.nih.gov/pubmed/29168768 http://dx.doi.org/10.3390/ijms18122502 |
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