应用化学 ›› 2011, Vol. 28 ›› Issue (01): 113-117.DOI: 10.3724/SP.J.1095.2010.00243

• 研究论文 • 上一篇    下一篇

自探针荧光法研究十二烷基苯磺酸钠与TritonX-100相互作用

李海朝2,刘金彦1*,张迎春1   

  1. (内蒙古科技大学化学与化工学院 包头 014010)
  • 收稿日期:2010-04-26 修回日期:2010-06-29 出版日期:2011-01-10 发布日期:2011-01-10
  • 通讯作者: 刘金彦,教授; Tel/Fax:0472-5951561; E-mail:liujinyan2007@163.com; 研究方向:胶体与界面化学
  • 基金资助:
    内蒙古高等学校科学研究基金(NJZY07104)内蒙古自然科学基金(2008080404MS0210)黑龙江省自然科学基金项目(4240065-4-08163)资助项目

Interaction of Sodium Dodecyl Benzene Sulfonate and TritonX-100 Studied by Intrinsic Fluorescence

LI Haichao2, LIU Jinyan1*, ZHANG Yingchun1   

  1. (College of Chemistry and Chemical Engineering,Inner Mongolia University of
    Science & Technology,Baotou 014010)
  • Received:2010-04-26 Revised:2010-06-29 Published:2011-01-10 Online:2011-01-10
  • About author:

摘要:

采用荧光光谱法研究了十二烷基苯磺酸钠(SDBS)与非离子表面活性剂TritonX-100混合体系在水溶液中聚集体的性质。 发现在浓度与荧光强度的关系曲线上存在2个转折点,分别对应于混合体系的临界胶团浓度和胶团形状发生转变的浓度。 通过混合胶团相互作用关系,计算了SDBS与TritonX-100的相互作用参数βM,说明SDBS以其自身所带生色基团苯磺酸与TritonX-100发生了协调效应且存在着较强的相互作用。

关键词: 自探针荧光, 相互作用, 混合胶团, 临界胶团浓度, 表面张力

Abstract:

Using the chromophore base of benzene sulfonate in sodium dodecyl benzene sulfonate(SDBS), the aggregation property of SDBS with non-ionic surfactant TritonX-100 in aqueous solution was studied by fluorescence. Results show there are two turning points in the variation curve of fluorescence intensity I as a function of concentration, which is the critical micelle concentration and the concentration at which the micelle shape changed, respectively. The interaction parameter βM between SDBS and TritonX-100 was calculated by the formula of mixed micelle interaction. The results show there is synergism and strong interaction between them.

Key words: Intrinsic fluorescence, Interaction, Mixed micelle, Critical micelle concentration, Surface tension

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