期刊
COLLOID AND POLYMER SCIENCE
卷 283, 期 12, 页码 1371-1375出版社
SPRINGER
DOI: 10.1007/s00396-005-1330-5
关键词
nonaqueous microemulsion; ionic liquid; microstructure
The phase behavior of toluene/Triton X-100 (TX-100)/1-butyl-3-methylimidazollum hexafluorophosphate([bmim][PF6]) was studied. It was demonstrated that the single-phase microemulsion area covered about 75% of the phase diagram at 25 degrees C. Electrical conductivities of the system with different w ([bmim][PF6]-to-TX-100 molar ratio) values were determined, and the results were used to locate the sub-regions of the single-phase microemulsion. The results showed that a transform from [bmim][PF6]in-oil ([bmim][PF6]/O) microstructure via a bicontinuous region to an oil-in-[bmim][PF6] (O/[bmim][PF6]) microstructure occurred with the increase of (D (weight fraction of TX-100 and [bmim][PF6] in the system). The aggregate size of the reverse microemulsions of [bmim][PF6]/O was determined using small-angle X-ray scattering. The results showed that the size of the reverse microemulsions depended markedly on the w values.
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