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Citation

Ries, Michael (2023) Data for Dissolution of a commercial regenerated cellulosic fibre (Cordenka) in the ionic liquid 1-ethyl-3-methylimidazolium acetate studied using time-temperature superposition. University of Leeds. [Dataset] https://doi.org/10.5518/1276

Dataset description

Wide-angle X-ray diffraction (WAXS) and mechanical testing techniques are used to track the dissolution of a regenerated commercial cellulose fibre (Cordenka) in the ionic liquid 1-ethyl-3-methyl-imidazolium acetate [C2mim]+ [OAc]- for different times and temperatures. In the dissolution process, the oriented cellulose II crystals in the regenerated cellulose fibres dissolve and then reform into randomly oriented crystals to form a matrix phase, and this change in orientation enables us to follow the dissolution process using WAXS, and hence determine the dissolved matrix volume fraction . The change in the average molecular orientation determined from an azimuthal ) X-ray scan, allows the growth of the matrix volume fraction to be calculated with time and temperature. The growth of was found to follow time temperature superposition, with an Arrhenius behaviour, giving a value for the activation energy of Ea= 149 ± 4 kJ/mol. Young’s modulus was measured on all the resulting composite fibres. The fall of Young’s modulus with dissolution time and temperature was also found to follow time-temperature superposition, with an Arrhenius behaviour giving a value for Ea= 198± 29 kJ/mol. The Young’s Modulus results plotted against determined from the WAXS measurements fitted well to the Voigt upper bound parallel Rule of Mixtures

Subjects:	F000 - Physical sciences > F300 - Physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1007/s10570-023-05362-x Publication https://eprints.whiterose.ac.uk/203543/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	18 Jul 2023 10:00
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/1136
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 Ries, Michael https://orcid.org/0000-0002-8050-3200 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: University of Tabuk Publication date: 2023 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: m.e.ries@leeds.ac.uk Last Modified: 08 Nov 2024 10:38

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Data

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