Research Data Leeds Repository

Citation

King, James A. and Hine, Peter J. and Baker, Daniel and Ries, Michael (2024) Data for “Understanding the Dissolution of Cellulose and Silk Fibroin in 1-ethyl-3-methylimidazolium Acetate and Dimethyl Sulfoxide for Application in Hybrid Films”. University of Leeds. [Dataset] https://doi.org/10.5518/1583

Dataset description

This is data for a paper that investigates the dissolution of two biopolymers, cellulose and silk fibroin, in a mixture of 1-ethyl-3-methylimidazolium acetate (EmimAc) and dimethyl sulphoxide (DMSO). EmimAc is a promising environmentally friendly solvent currently in wide use but can be limited by its high viscosity, which inhibits the speed of dissolution. To mediate this, DMSO has been used as a cosolvent and has been shown to significantly lower the solution viscosity and aid mass transport. Dissolution experiments are carried out separately for both cellulose and silk fibrion with a range of EmimAc:DMSO ratios from 100 wt% EmimAc to 100 wt% DMSO. Interestingly, the optimal EmimAc:DMSO ratio (in terms of dissolution speed) is found to be very different for the two biopolymers. For cellulose, a mixture of 20 wt% EmimAc with 80 wt% DMSO is found to have the fastest dissolution speed, while for silk fibroin, a ratio of 80 wt% EmimAc with 20 wt% DMSO proves the fastest. These dissolution trials are complemented by rheological and nuclear magnetic resonance experiments to provide further insight into the underlying mechanisms. Finally, we produce hybrid biopolymer films from a solution to show how this work provides a foundation for future effective dissolution and the preparation of hybrid biopolymer films and hybrid biocomposites.

Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.3390/ma17215262 Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	29 Oct 2024 09:59
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/1337
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type King, James A. https://orcid.org/0000-0003-4424-9118 University of Leeds https://ror.org/024mrxd33 ror Hine, Peter J. University of Leeds https://ror.org/024mrxd33 ror Baker, Daniel https://orcid.org/0000-0002-5145-3320 University of Leeds https://ror.org/024mrxd33 ror Ries, Michael https://orcid.org/0000-0002-8050-3200 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: EPSRC Grant numbers: EP/S023631/1 Publication date: 2024 Resource language: English Metadata language: English Publisher: University of Leeds Last Modified: 31 Oct 2024 12:11

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Data

Figure Data [401kB] Figure Data [401kB] Figure Data [401kB] Security: Anyone File name: Figure_Data.xlsx Content type: Data Description: All the data for all the figures Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 401kB