阴离子表面活性剂SDS与离子液体[bmim][PF6]的相互作用研究
首发时间:2008-01-23
摘要:本文采用UV光谱、荧光发射光谱研究了阴离子表面活性剂SDS与离子液体[bmim][PF6]的相互作用,结果表明SDS胶束对[bmim][PF6]固有近紫外吸收和荧光发射具有显著敏化作用; 1H NMR实验结果表明[bmim][PF6]在SDS胶束中的增溶部位为SDS胶束栅栏层,[bmim][PF6]渗入SDS胶束栅栏层的最大深度为SDS分子的C3亚甲基附近。
关键词: SDS [bmim][PF6] 增溶部位 光谱敏化
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Interaction between 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) and anionic surfactant sodium dodecyl sulfate (SDS)
Abstract:The interaction between an anionic surfactant, sodium dodecyl sulfate (SDS) and an ionic liquid, [bmim][PF6] was investigated by UV spectroscopy and fluorescence emission spectroscopy. The experimental result indicates that the formation of the SDS micells makes both the intrinsic total UV absorption and fluorescent emission of [bmim][PF6] enhanced remarkably. The solubilizing site of [bmim][PF6] was the palisade layer of SDS micelles, which was revealed by 1H NMR. Furthermore, the maximum depth of entrapped [bmim][PF6] within the SDS micelle palisade layer may nearby the C3 methylene.
Keywords: SDS, [bmim][PF6], Solubilizing site, spectral sensitization.
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No.1831218735912010****
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