DOI > 10.5291/ILL-DATA.9-10-1674

This proposal is publicly available since 03/13/2026

Title

Micelles in Chloride-Free Deep Eutectic Solvents.

Abstract

Deep Eutectic Solvents (DES) are mixtures of organic salts and hydrogen bond donors, that form strongly hydrogen-bonded room temperature liquids. DES share many features with ionic liquids (ie. tunable physicochemical properties) which make them viable green solvents that are less toxic than typical ILs. We have studied amphiphile self-assembly in DES with the aim of developing templated deep eutectic-solvothermal syntheses for catalytic porous metal oxide structures, and have studied self-assembly in a range of choline chloride based DES. The halide anion however is known to poison many catalytic particles, so here we wish to probe surfactant self-assembly in a halide free DES, composed of glycerol and citric acid. Nonionic and cationic surfactants have been found to be soluble in this DES and preliminary SAXS data demonstrates micellization but also micelle structures which differ from those found for these surfactants in water and in glycerol:choline chloride DES. We hypothesis that headgroup interactions with solvent components alter the micelle shape and propose to use contrast variation SANS to better understand the structures formed in these solutions.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

Karen J Edler; BATHKE Elly Kim and PREVOST Sylvain. (2021). Micelles in Chloride-Free Deep Eutectic Solvents.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1674

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Metadata

Experiment Parameters

  • Environment temperature

    30C
  • Experiment moment

    0.004-0.4 A-1

Sample Parameters

  • Formula

    • 2 d8-glycerol:citric acid
    • C12EO4 (C12H25(OC2H2)OH)
    • C12TAN (C12H25N(CH3)3NO3)
    • C16TAN (C16H33N(CH3)3NO3)
    • 2 glycerol:citric acid
    • 3 d8-glycerol:d4-citric acid
    • C12EO23 (C12H25(OC2H4)23OH)
    • d34-C12TAN (C12D25N(CD3)3NO3)
    • d42-C16TAN (C16D33N(CD3)3NO3)