Micellization of alkyltrimethylammonium bromide surfactants in choline chloride:glycerol deep eutectic solvent

Adrian Sanchez-Fernandez, Thomas Arnold, Andrew J Jackson, Sian L Fussell, Richard K Heenan, Richard A Campbell, Karen J Edler

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24 Citations (Scopus)

Abstract

Deep eutectic solvents have shown the ability to promote the self-assembly of surfactants in solution. However, some differences have been found compared with self-assembly in pure water and other polar organic solvents. The behaviour of alkyltrimethylammonium bromides in choline chloride:glycerol deep eutectic solvent has been studied by means of surface tension, X-ray and neutron reflectivity and small-angle neutron scattering. The surfactants were found to remain surface active and showed comparable critical micelle concentrations to the same surfactants in water. Our scattering studies demonstrate that these surfactants form globular micelles with ellipsoidal shape in solution. The size, shape and aggregation number of the aggregates were found to vary with the chain length of the surfactant. Specific solvent-headgroup interactions were not found in this system, unlike those we have previously postulated for anionic surfactants in choline chloride deep eutectic solvents.

Original languageEnglish
Pages (from-to)33240-33249
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume18
Issue number48
Early online date22 Nov 2016
DOIs
Publication statusPublished - 28 Dec 2016

Keywords

  • Journal Article

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    Sanchez-Fernandez, A., Arnold, T., Jackson, A. J., Fussell, S. L., Heenan, R. K., Campbell, R. A., & Edler, K. J. (2016). Micellization of alkyltrimethylammonium bromide surfactants in choline chloride:glycerol deep eutectic solvent. Physical Chemistry Chemical Physics, 18(48), 33240-33249. https://doi.org/10.1039/c6cp06053f