title: TX-100/water/1-butyl-3-methylimidazolium hexafluorophosphate microemulsions.
abstract: Both ionic liquids and water are typical green solvents. In this work, the phase behavior of the ternary system consisting of ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (bmimPF6), TX-100, and water was determined at 25.0 degrees C. The water-in-bmimPF6, bicontinuous, and bmimPF6-in-water microregions of the microemulsions were identified by cyclic voltammetry method using potassium ferrocyanide K4Fe(CN)6 as the electroactive probe. Dynamic light scattering (DLS) and the UV-vis method were used to characterize the microemulsions. It was demonstrated that the hydrodynamic diameter (Dh) of the bmimPF6-in-water microemulsions is nearly independent of the water content but increases with increasing bmimPF6 content due to the swelling of the micelles by the ionic liquid. The UV-vis further confirmed the existence of water domains in the water-in-bmimPF6 microemulsions, and the salt potassium ferricyanide K3Fe(CN)6 could be dissolved in the water domains.
authors.affiliation: Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Gao
authors.forename: Shuaibing
authors.initials: S
authors.lastname: Han
authors.forename: Buxing
authors.initials: B
authors.lastname: Han
authors.forename: Ganzuo
authors.initials: G
authors.lastname: Li
authors.forename: Dong
authors.initials: D
authors.lastname: Shen
authors.forename: Zhonghao
authors.initials: Z
authors.lastname: Li
authors.forename: Jimin
authors.initials: J
authors.lastname: Du
authors.forename: Wanguo
authors.initials: W
authors.lastname: Hou
authors.forename: Gaoyong
authors.initials: G
authors.lastname: Zhang