Ogunjobi, Joseph Kolawole, McElroy, Rob orcid.org/0000-0003-2315-8153, Clark, James Hanley orcid.org/0000-0002-5860-2480 et al. (3 more authors) (2021) A class of surfactants via PEG modification of the oleate moiety of lactonic sophorolipids:synthesis, characterisation and application. Green Chemistry. pp. 9906-9915. ISSN 1463-9270
Abstract
There is ever increasing demand to develop surfactants based on sophorolipids because they are produced by non-pathogenic organisms, biodegradable and less toxic to humans and the environment. Herein, commercially available lactonic sophorolipid was modified via epoxidation of the fatty acid units C[double bond, length as m-dash]C and subsequent ring-opening of the oxirane with poly(ethylene glycol) of vary chain lengths to deliver a novel range of non-ionic sophorolipid-based surfactants. The methods employed for ring-opening reaction lead to a final surfactant synthesis involving heterogeneous catalysis (metal-exchanged montmorillonite), use of a benign solvent (ethyl acetate) and short reaction time (60 minutes). The resulting surfactants were structurally characterised and a prediction of their potential applications achieved using the hydrophilic-lipophilic balance (HLB) concept, foam capacity and stability of the surfactants at 0.25% surfactant solution. This new family of bio-derivable non-ionic surfactants will be useful as wetting and solubilising agents, oil-in-water emulsifiers and detergents.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Royal Society of Chemistry 2021 |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 16 Dec 2021 01:15 |
Last Modified: | 21 Feb 2025 00:07 |
Published Version: | https://doi.org/10.1039/D1GC02247D |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1039/D1GC02247D |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:181659 |