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Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture

Ionic liquids (ILs) and deep eutectic solvents (DESs) are the two most widely used neoteric solvents. Recently, our group described how the simple addition of acetic acid (AcOH) to 1-Ethyl-3-methylimidazolium chloride (EMIMCl) could promote the transition from the original IL to an eutectic mixture...

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Autores principales: Zhang, Huan, Ionita, Andreea, Seriñan, Pilar F., Ferrer, María Luisa, Rodríguez, María A., Tamayo, Aitana, Rubio Alons, Fausto, del Monte, Francisco, Gutiérrez, María C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8840234/
https://www.ncbi.nlm.nih.gov/pubmed/35164255
http://dx.doi.org/10.3390/molecules27030987
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author Zhang, Huan
Ionita, Andreea
Seriñan, Pilar F.
Ferrer, María Luisa
Rodríguez, María A.
Tamayo, Aitana
Rubio Alons, Fausto
del Monte, Francisco
Gutiérrez, María C.
author_facet Zhang, Huan
Ionita, Andreea
Seriñan, Pilar F.
Ferrer, María Luisa
Rodríguez, María A.
Tamayo, Aitana
Rubio Alons, Fausto
del Monte, Francisco
Gutiérrez, María C.
author_sort Zhang, Huan
collection PubMed
description Ionic liquids (ILs) and deep eutectic solvents (DESs) are the two most widely used neoteric solvents. Recently, our group described how the simple addition of acetic acid (AcOH) to 1-Ethyl-3-methylimidazolium chloride (EMIMCl) could promote the transition from the original IL to an eutectic mixture of EMIMCl and AcOH. Herein, we studied how cellulose regeneration and EMIMCl recovery from EMIMCl solutions of cellulose could be benefited by the significant differences existing between EMIMCl- and EMIMCl·AcOH-based mixtures and the easy switching from one to the other. Finally, we also demonstrated that the transition could also be accomplished by addition of acetic anhydride and water so that the process could be eventually useful for the achievement of highly acetylated cellulose.
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spelling pubmed-88402342022-02-13 Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture Zhang, Huan Ionita, Andreea Seriñan, Pilar F. Ferrer, María Luisa Rodríguez, María A. Tamayo, Aitana Rubio Alons, Fausto del Monte, Francisco Gutiérrez, María C. Molecules Article Ionic liquids (ILs) and deep eutectic solvents (DESs) are the two most widely used neoteric solvents. Recently, our group described how the simple addition of acetic acid (AcOH) to 1-Ethyl-3-methylimidazolium chloride (EMIMCl) could promote the transition from the original IL to an eutectic mixture of EMIMCl and AcOH. Herein, we studied how cellulose regeneration and EMIMCl recovery from EMIMCl solutions of cellulose could be benefited by the significant differences existing between EMIMCl- and EMIMCl·AcOH-based mixtures and the easy switching from one to the other. Finally, we also demonstrated that the transition could also be accomplished by addition of acetic anhydride and water so that the process could be eventually useful for the achievement of highly acetylated cellulose. MDPI 2022-02-01 /pmc/articles/PMC8840234/ /pubmed/35164255 http://dx.doi.org/10.3390/molecules27030987 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Huan
Ionita, Andreea
Seriñan, Pilar F.
Ferrer, María Luisa
Rodríguez, María A.
Tamayo, Aitana
Rubio Alons, Fausto
del Monte, Francisco
Gutiérrez, María C.
Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title_full Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title_fullStr Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title_full_unstemmed Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title_short Easy and Efficient Recovery of EMIMCl from Cellulose Solutions by Addition of Acetic Acid and the Transition from the Original Ionic Liquid to an Eutectic Mixture
title_sort easy and efficient recovery of emimcl from cellulose solutions by addition of acetic acid and the transition from the original ionic liquid to an eutectic mixture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8840234/
https://www.ncbi.nlm.nih.gov/pubmed/35164255
http://dx.doi.org/10.3390/molecules27030987
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