DOI > 10.5291/ILL-DATA.9-10-1383

This proposal is publicly available since 12/18/2019

Title

Study of nanometre-size domains in dilutions of eutectic mixtures

Abstract

Deep eutectic solvents (DESs) offer an interesting alternative to regular amphiphiles. We have studied aqueous dilutions of DESs by NMR spectroscopy and Brillouin scattering. The former revealed that for DES dilutions with low water contents, the chemical shifts of the NMR spectra corresponded to water molecules solvated by DES, whereas the opposite situation (i.e., water solvating the individual components of DES) was found for high water contents. We also found that transitioning from low to high water contents implies the growth of the water domains that, in a first stage, can be yet solvated by DES and, later on, promote the rupture of the DES into its individual components. The use of SANS will let us analyse the main features of this bicontinuous phase, those are, the range of dilutions where it indeed exists and the dimensions of the nanometre-size domains. Our interest in determining these features resides in the capability of DES dilutions to produce materials that also exhibit a bicontinuous structure. Demonstrating that this bicontinuous structure comes from the bicontinuous phase at the solution stage will definitively help for the design of novel materials.

Experimental Report

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Data Citation

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

DEL MONTE Francisco; FERRER Maria Luisa; HONECKER Dirk and LOPEZ SALAS Maria de las Nieves. (2014). Study of nanometre-size domains in dilutions of eutectic mixtures. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1383

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Metadata

Experiment Parameters

Sample Parameters

  • Formula

    • Resorcinol/Choline chloride
    • Resorcinol/hexylresorcinol/choline chloride
    • resorcinol/choline chloride in benzylalcohol
    • Resorcinol/hexylresorcinol/choline chloride in benzyl alcohol
    • resorcinol/choline chloride/phosphoric acid
    • resorcinol/urea/choline chloride in water