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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Rutland, Mark
KTH Royal Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 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
- 2015Can Cobalt(II) and Chromium(III) Ions Released from Joint Prostheses Influence the Friction Coefficientcitations
- 2013Non-ionic assembly of nanofibrillated cellulose and polyethylene glycol grafted carboxymethyl cellulose and the effect of aqueous lubrication in nanocomposite formationcitations
- 2009Adhesion dynamics for cellulose nanocomposites.citations
- 2002Dynamic adhesion of grafted polymer surfaces as studied by surface force measurementscitations
- 2001Study of thin surfactant films under shear using the tribological surface force apparatuscitations
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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.