Thumbnail Image
Publication

Time temperature superposition of the dissolution of cellulose fibres by the ionic liquid 1-ethyl-3-methylimidazolium acetate with cosolvent dimethyl sulfoxide

Hawkins, James E.
; 
Liang, Yunhao
; 
Ries, Michael E.
; 
Hine, Peter J.
Advisors
Editors
Other Contributors
Affiliation
University of Leeds; University of Chester
EPub Date
Publication Date
2020-12-15
Submitted Date
Collections
Natural Sciences
Show all metadata
Files
Thumbnail Image
Article - VoR
Adobe PDF, 2.11 MB
Other Titles
Abstract
The dissolution of cellulosic flax fibres in the ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) with cosolvent dimethyl sulfoxide (DMSO) has been studied. The fibres were submerged in the ionic liquid/DMSO mixtures at different temperatures for a range of dissolution times, then coagulated in water. After drying, cross sections of the fibres were analysed using an optical microscope, which was used to track the fraction of coagulated fibre. The temperature dependence of this coagulated fraction is found to follow an Arrhenius equation with a single activation energy of 100±10 kJ/mol. This value is, remarkably, independent of the weight fraction of DMSO used. This work quantifies the composition for the peak dissolution rate, which occurs at an equal weight fraction of DMSO and [C2mim][OAc]. Finally, this study reveals an equivalence between time, temperature and DMSO weight fraction in the dissolution of flax fibres.
Citation
Hawkins, J. E., Liang, Y., Ries, M. E., & Hine, P. J. (2021). Time temperature superposition of the dissolution of cellulose fibres by the ionic liquid 1-ethyl-3-methylimidazolium acetate with cosolvent dimethyl sulfoxide. Carbohydrate Polymer Technologies and Applications, 2, article-number 100021. https://doi.org/10.1016/j.carpta.2020.100021
Publisher
Elsevier
Journal
Carbohydrate Polymer Technologies and Applications
Research Unit
URI
http://hdl.handle.net/10034/629283
DOI
10.1016/j.carpta.2020.100021
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
© 2020 The Authors. Published by Elsevier Ltd.
Series/Report no.
ISSN
EISSN
2666-8939
ISBN
ISMN
Gov't Doc
Test Link
Sponsors
Funding for this research came from the Doctoral Training Centre, Soft Matter for Formulation and Industrial Innovation, grant EP/S023631/1.
Additional Links
https://www.sciencedirect.com/science/article/pii/S2666893920300219?via%3Dihub