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题名: The effect of water on the microstructure and properties of benzene/[bmim][AOT]/[bmim][BF4] microemulsions
作者: Bai, Tingting1, 2;  Ge, Rile2;  Gao, Yanan2;  Chai, Jinling1;  Slattery, John M.3
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2013
DOI: 10.1039/c3cp53441c
卷: 15, 期:44, 页:19301-19311
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: In the present contribution, results concerning the role of small amounts of water in the 1-butyl-3-methylimidazolium bis 2-ethylhexyl sulfosuccinate ([bmim][AOT]) based 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4])-in-benzene reverse microemulsions are emphasized. The microemulsion aggregates have demonstrated features in common with traditional aqueous systems, such as a normal microemulsion droplet size and decreased stability due to the addition of a polar component. Dynamic light scattering (DLS) showed that the size change of microemulsion with added water depends on the loaded [bmim][BF4] content in the microemulsion: when the [bmim][BF4] content is low, the microemulsion diameter first decreases and then increases, while the size remains about the same for microemulsions with a moderate [bmim][BF4] loading and a successive increase in size was found for high-loaded [bmim][BF4] microemulsions. H-1 NMR along with two-dimensional rotating frame nuclear Overhauser effect (NOE) experiments (ROESY) revealed that water molecules formed wide interactions with both 1-butyl-3-methylimidazolium ([bmim]) and bis 2-ethylhexyl sulfosuccinate ([AOT]), leading to a decrease in the headgroup area of [bmim][AOT], i.e. a value, which will decrease the microemulsion size. On the other hand, addition of water can simultaneously swell the microemulsions, causing an increase in the diameter. It is also deduced that the Coulomb forces between the [AOT] and [bmim] should be one of the main driving forces for the formation of [bmim][BF4]-in-benzene microemulsions.
关键词[WOS]: IONIC LIQUID MICROEMULSIONS ;  NONAQUEOUS POLAR-SOLVENTS ;  IN-OIL MICROEMULSIONS ;  REVERSE MICELLES ;  AEROSOL-OT ;  1-BUTYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE/TX-100/BENZENE ;  ROTATIONAL RELAXATION ;  SOLUBILIZED WATER ;  CONTINUOUS-PHASE ;  AQUEOUS-SOLUTION
语种: 英语
WOS记录号: WOS:000326220000025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137804
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
3.Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England

Recommended Citation:
Bai, Tingting,Ge, Rile,Gao, Yanan,et al. The effect of water on the microstructure and properties of benzene/[bmim][AOT]/[bmim][BF4] microemulsions[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2013,15(44):19301-19311.
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