TX-100/water/1-butyl-3-methylimidazolium hexafluorophosphate microemulsions
TX-100/water/1-butyl-3-methylimidazolium hexafluorophosphate microemulsions
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DOI：
10.1021/la0500880
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发表时间：
2005-06-21
期刊：
影响因子：
3.9
通讯作者：
Zhang, GY
中科院分区：
文献类型：
--
作者：
Gao, YN;Han, SB;Zhang, GY
离子液体和水都是典型的绿色溶剂。在本工作中，由离子液体1-丁基-3-甲基咪唑六氟磷酸盐（bmimPF（6））、TX-100和水组成的三元体系在25.0 ℃下的相行为被测定。以亚铁氰化钾K4 Fe（CN）（6）为电活性探针，用循环伏安法对微乳液的水包bmimPF（6）、双连续和bmimPF（6）包水微区进行了表征。采用动态光散射（DLS）和紫外-可见分光光度法对微乳液进行了表征。结果表明，bmimPF（6）-水微乳液的流体动力学直径（D-h）几乎与水含量无关，但随着bmimPF（6）含量的增加而增加，这是由于离子液体对胶束的溶胀。UV-vis进一步证实了bmimPF（6）包水型微乳液中存在水畴，铁氰化钾K3 Fe（CN）（6）盐可溶解于水畴中。
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 (bmimPF(6)), TX-100, and water was determined at 25.0 degrees C. The water-in-bmimPF(6), bicontinuous, and bmimPF(6)-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 (D-h) of the bmimPF(6)-in-water microemulsions is nearly independent of the water content but increases with increasing bmimPF(6) 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-bmimPF(6) microemulsions; and the salt potassium ferricyanide K3Fe(CN)(6) could be dissolved in the water domains.