CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
QOPNA Unit, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
Angew Chem Int Ed Engl. 2017 Nov 20;56(47):15058-15062. doi: 10.1002/anie.201705704. Epub 2017 Oct 19.
Novel aqueous multiphase systems (MuPSs) formed by quaternary mixtures composed of cholinium-based ionic liquids (ILs), polymers, inorganic salts, and water are reported herein. The influence of several ILs, polymers, and salts was studied, demonstrating that a triple salting-out is a required phenomenon to prepare MuPSs. The respective phase diagrams and "tie-surfaces" were determined, followed by the evaluation of the effect of temperature. Finally, the remarkable ability of IL-based MuPSs to selectively separate mixtures of textile dyes is shown.
本文报道了由季铵盐离子液体 (ILs)、聚合物、无机盐和水组成的四元混合物形成的新型水多相体系 (MuPSs)。研究了几种 ILs、聚合物和盐的影响,证明三重盐析是制备 MuPSs 的必要现象。确定了相应的相图和“tie-surfaces”,并评估了温度的影响。最后,展示了基于 IL 的 MuPSs 对纺织染料混合物进行选择性分离的卓越能力。