Nanostructure in amphiphilic sulfobetaine based deep eutectic solvent
Deep eutectic solvents (DES) are mixtures of hydrogen bond donors and acceptors that form strongly hydrogen-bonded room temperature liquids. DES share many features with ionic liquids (i.e. tunable physicochemical properties), making them viable green solvents. Recently a series of DES based on amphiphilic sulfobetaines and camphor sulfonic acid have been reported, in which solvent structuring can be expected due to the nature of the DES components offering a unique potential for templating applications. We have initial indication that these solvents have internal nanoscale structure, and preferentially solubilise polar and non-polar additives. We wish to understand the interplay between the DES components by determining the nanostructure of DES, and how water (polar) and dodecane (non-polar) interact with hydrophilic and hydrophobic moieties found in the DES components by conducting SANS experiments on the DES along with additives and using contrast variation to highlight the relative position of solvent components vs additives. This will enable future experiments exploiting the solvent structuring for templated material synthesis to modify particle size, shape or porosity.
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Karen J Edler; CUBITT Robert; I.Manasi; PORCAR Lionel and SCHWEINS Ralf. (2021). Nanostructure in amphiphilic sulfobetaine based deep eutectic solvent. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1699
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