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| Naji, M. |
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| Ertürk, Emre |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Hammond, Oliver
European Spallation Source
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Small-Angle Neutron Scattering Insights into 2-Ethylhexyl Laurate: A Remarkable Bioestercitations
- 2024Small-Angle Neutron Scattering Insights into 2-Ethylhexyl Laurate: A Remarkable Bioestercitations
- 2022Neutron Diffraction Study of Indole Solvation in Deep Eutectic Systems of Choline Chloride, Malic Acid, and Watercitations
- 2021Structural Evolution of Iron Forming Iron Oxide in a Deep Eutectic-Solvothermal Reactioncitations
- 2021Connecting chloride solvation with hydration in deep eutectic systemscitations
- 2019Structure and properties of ‘Type IV’ lanthanide nitrate hydrate:urea deep eutectic solventscitations
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article
Small-Angle Neutron Scattering Insights into 2-Ethylhexyl Laurate: A Remarkable Bioester
Abstract
Commercial (protiated) samples of the “green” and biodegradable bioester 2-ethylhexyl laurate (2-EHL) were mixed with D-2-EHL synthesized by hydrothermal deuteration, with the mixtures demonstrating bulk structuring in small-angle neutron scattering measurements. Analysis in a polymer scattering framework yielded a radius of gyration (Rg) of 6.5 Å and a Kuhn length (alternatively described as the persistence length or average segment length) of 11.2 Å. Samples of 2-EHL dispersed in acetonitrile formed self-assembled structures exceeding the molecular dimensions of the 2-EHL, with a mean aggregation number (Nagg) of 3.5 ± 0.2 molecules across the tested concentrations. We therefore present structural evidence that this ester can function as a nonionic (co)surfactant. The available surfactant-like conformations appear to enable performance beyond the low calculated hydrophilic–lipophilic balance value of 2.9. Overall, our data offer an explanation for 2-EHL’s interfacial adsorption properties via self-assembly, resulting in strong emolliency and lubricity for this sustainable ester-based bio-oil.