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Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions
In this study, we have performed the preparation of reswellable amorphous porous celluloses through regeneration from hydrogels. The cellulose hydrogels were first prepared from solutions with an ionic liquid, 1-butyl-3-methylimidazolium chloride (BMIMCl), in different concentrations. Lyophilization...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804144/ https://www.ncbi.nlm.nih.gov/pubmed/31590311 http://dx.doi.org/10.3390/ma12193249 |
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author | Idenoue, Satoshi Oga, Yoshitaka Hashimoto, Daichi Yamamoto, Kazuya Kadokawa, Jun-ichi |
author_facet | Idenoue, Satoshi Oga, Yoshitaka Hashimoto, Daichi Yamamoto, Kazuya Kadokawa, Jun-ichi |
author_sort | Idenoue, Satoshi |
collection | PubMed |
description | In this study, we have performed the preparation of reswellable amorphous porous celluloses through regeneration from hydrogels. The cellulose hydrogels were first prepared from solutions with an ionic liquid, 1-butyl-3-methylimidazolium chloride (BMIMCl), in different concentrations. Lyophilization of the hydrogels efficiently produced the regenerated celluloses. The powder X-ray diffraction and scanning electron microscopic measurements of the products suggest an amorphous structure and porous morphology, respectively. Furthermore, the pore sizes of the regenerated celluloses, or in turn, the network sizes of cellulose chains in the hydrogels, were dependent on the concentrations of the initially prepared solutions with BMIMCl, which also affected the tensile mechanical properties. It was suggested that the dissolution states of the cellulose chains in the solutions were different, in accordance with the concentrations, which representatively dominated the pore and network sizes of the above materials. When the porous celluloses were immersed in water, reswelling was observed to regenerate the hydrogels. |
format | Online Article Text |
id | pubmed-6804144 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68041442019-11-18 Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions Idenoue, Satoshi Oga, Yoshitaka Hashimoto, Daichi Yamamoto, Kazuya Kadokawa, Jun-ichi Materials (Basel) Article In this study, we have performed the preparation of reswellable amorphous porous celluloses through regeneration from hydrogels. The cellulose hydrogels were first prepared from solutions with an ionic liquid, 1-butyl-3-methylimidazolium chloride (BMIMCl), in different concentrations. Lyophilization of the hydrogels efficiently produced the regenerated celluloses. The powder X-ray diffraction and scanning electron microscopic measurements of the products suggest an amorphous structure and porous morphology, respectively. Furthermore, the pore sizes of the regenerated celluloses, or in turn, the network sizes of cellulose chains in the hydrogels, were dependent on the concentrations of the initially prepared solutions with BMIMCl, which also affected the tensile mechanical properties. It was suggested that the dissolution states of the cellulose chains in the solutions were different, in accordance with the concentrations, which representatively dominated the pore and network sizes of the above materials. When the porous celluloses were immersed in water, reswelling was observed to regenerate the hydrogels. MDPI 2019-10-04 /pmc/articles/PMC6804144/ /pubmed/31590311 http://dx.doi.org/10.3390/ma12193249 Text en © 2019 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 Idenoue, Satoshi Oga, Yoshitaka Hashimoto, Daichi Yamamoto, Kazuya Kadokawa, Jun-ichi Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title | Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title_full | Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title_fullStr | Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title_full_unstemmed | Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title_short | Preparation of Reswellable Amorphous Porous Celluloses through Hydrogelation from Ionic Liquid Solutions |
title_sort | preparation of reswellable amorphous porous celluloses through hydrogelation from ionic liquid solutions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804144/ https://www.ncbi.nlm.nih.gov/pubmed/31590311 http://dx.doi.org/10.3390/ma12193249 |
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