A physicochemical investigation of ionic liquid mixtures

作者：Clough Matthew T; Crick Colin R; Grasvik John; Hunt Patricia A^*; Niedermeyer Heiko; Welton Tom; Whitaker Oliver P

来源：Chemical Science, 2015, 6(2): 1101-1114.

DOI：10.1039/c4sc02931c

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.

• 出版日期2015