Clough Matthew T, Crick Colin R, Gräsvik John, Hunt Patricia A, Niedermeyer Heiko, Welton Tom, Whitaker Oliver P
Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . Email:
Tonbridge School , Tonbridge , Kent TN9 1JP , UK.
Chem Sci. 2015 Feb 1;6(2):1101-1114. doi: 10.1039/c4sc02931c. Epub 2014 Nov 5.
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.
离子液体因其具有广泛的可获取性质以及通过改变组成离子所实现的微调程度，而赢得了“设计型溶剂”的声誉。离子液体混合物为进一步微调性质提供了机会。本文采用了多种常见的离子液体阳离子和阴离子来制备二元和互二元离子液体混合物样品，并对其进行了分析和描述。研究了诸如电导率、粘度、密度和相行为（玻璃化转变温度）等物理性质。此外，还评估了混合物的热稳定性。结果发现，这些配方所研究的物理性质通常非常紧密地遵循理想混合定律，仅有一些一致的例外情况，这使得离子液体混合物的性质易于预测和控制。
