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Issue 2, 2015
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A physicochemical investigation of ionic liquid mixtures

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Abstract

Ionic liquids have earned the reputation of being ‘designer solvents’ due to the wide range of accessible properties and the degree of fine-tuning afforded by varying the constituent ions. Mixtures of ionic liquids offer the opportunity for further fine-tuning of properties. A broad selection of common ionic liquid cations and anions are employed to create a sample of binary and reciprocal binary ionic liquid mixtures, which are analysed and described in this paper. Physical properties such as the conductivity, viscosity, density and phase behaviour (glass transition temperatures) are examined. In addition, thermal stabilities of the mixtures are evaluated. The physical properties examined for these formulations are found to generally adhere remarkably closely to ideal mixing laws, with a few consistent exceptions, allowing for the facile prediction and control of properties of ionic liquid mixtures.

Graphical abstract: A physicochemical investigation of ionic liquid mixtures

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Publication details

The article was received on 22 Sep 2014, accepted on 05 Nov 2014 and first published on 05 Nov 2014


Article type: Edge Article
DOI: 10.1039/C4SC02931C
Citation: Chem. Sci., 2015,6, 1101-1114
  • Open access: Creative Commons BY license
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    A physicochemical investigation of ionic liquid mixtures

    M. T. Clough, C. R. Crick, J. Gräsvik, P. A. Hunt, H. Niedermeyer, T. Welton and O. P. Whitaker, Chem. Sci., 2015, 6, 1101
    DOI: 10.1039/C4SC02931C

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