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Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents

A deep eutectic solvent (DES) composed of sulfamic acid and glycerol allowed for the sustainable preparation of cellulose nanofibrils (CNF) with simultaneous sulfation. The reaction time and the levels of sulfamic acid demonstrated that fibers could be swelled and sulfated simultaneously by a sulfam...

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Autores principales: Li, Weidong, Xue, Yu, He, Ming, Yan, Jiaqiang, Lucia, Lucian A., Chen, Jiachuan, Yu, Jinghua, Yang, Guihua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623615/
https://www.ncbi.nlm.nih.gov/pubmed/34835547
http://dx.doi.org/10.3390/nano11112778
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author Li, Weidong
Xue, Yu
He, Ming
Yan, Jiaqiang
Lucia, Lucian A.
Chen, Jiachuan
Yu, Jinghua
Yang, Guihua
author_facet Li, Weidong
Xue, Yu
He, Ming
Yan, Jiaqiang
Lucia, Lucian A.
Chen, Jiachuan
Yu, Jinghua
Yang, Guihua
author_sort Li, Weidong
collection PubMed
description A deep eutectic solvent (DES) composed of sulfamic acid and glycerol allowed for the sustainable preparation of cellulose nanofibrils (CNF) with simultaneous sulfation. The reaction time and the levels of sulfamic acid demonstrated that fibers could be swelled and sulfated simultaneously by a sulfamic acid-glycerol-based DES and swelling also promoted sulfation with a high degree of substitution (0.12). The DES-pretreated fibers were further nanofibrillated by a grinder producing CNF with diameters from 10 nm to 25 nm. The crystallinity ranged from 53–62%, and CNF maintained the original crystal structure. DES pretreatment facilitated cellulose nano-fibrillation and reduced the energy consumption with a maximum reduction of 35%. The films prepared from polyvinyl alcohol (PVA) and CNF showed good UV resistance ability and mechanical properties. This facile and efficient method provided a more sustainable strategy for the swelling, functionalization and nano-fibrillation of cellulose, expanding its application to UV-blocking materials and related fields.
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spelling pubmed-86236152021-11-27 Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents Li, Weidong Xue, Yu He, Ming Yan, Jiaqiang Lucia, Lucian A. Chen, Jiachuan Yu, Jinghua Yang, Guihua Nanomaterials (Basel) Article A deep eutectic solvent (DES) composed of sulfamic acid and glycerol allowed for the sustainable preparation of cellulose nanofibrils (CNF) with simultaneous sulfation. The reaction time and the levels of sulfamic acid demonstrated that fibers could be swelled and sulfated simultaneously by a sulfamic acid-glycerol-based DES and swelling also promoted sulfation with a high degree of substitution (0.12). The DES-pretreated fibers were further nanofibrillated by a grinder producing CNF with diameters from 10 nm to 25 nm. The crystallinity ranged from 53–62%, and CNF maintained the original crystal structure. DES pretreatment facilitated cellulose nano-fibrillation and reduced the energy consumption with a maximum reduction of 35%. The films prepared from polyvinyl alcohol (PVA) and CNF showed good UV resistance ability and mechanical properties. This facile and efficient method provided a more sustainable strategy for the swelling, functionalization and nano-fibrillation of cellulose, expanding its application to UV-blocking materials and related fields. MDPI 2021-10-21 /pmc/articles/PMC8623615/ /pubmed/34835547 http://dx.doi.org/10.3390/nano11112778 Text en © 2021 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
Li, Weidong
Xue, Yu
He, Ming
Yan, Jiaqiang
Lucia, Lucian A.
Chen, Jiachuan
Yu, Jinghua
Yang, Guihua
Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title_full Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title_fullStr Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title_full_unstemmed Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title_short Facile Preparation and Characteristic Analysis of Sulfated Cellulose Nanofibril via the Pretreatment of Sulfamic Acid-Glycerol Based Deep Eutectic Solvents
title_sort facile preparation and characteristic analysis of sulfated cellulose nanofibril via the pretreatment of sulfamic acid-glycerol based deep eutectic solvents
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623615/
https://www.ncbi.nlm.nih.gov/pubmed/34835547
http://dx.doi.org/10.3390/nano11112778
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