Micellization of Pentanediyl-1,5-bis(hydroxyethylmethyl hexadecylammonium Bromide) as a Cationic Gemini Surfactant in Aqueous Solutions: Investigation Using Conductometry and Fluorescence Techniques

被引:0
作者
R. Zarganian
A. K. Bordbar
R. Amiri
M. Tamannaei
A. R. Khosropour
I. Mohammadpoor-Baltork
机构
[1] University of Isfahan,Department of Chemistry
来源
Journal of Solution Chemistry | 2011年 / 40卷
关键词
Gemini surfactant; CMC; Aggregation number; Conductivity; Fluorescence;
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学科分类号
摘要
Pentanediyl-1,5-bis (hydroxyethylmethylhexadecylammonium bromide) was synthesized and characterized as a type of novel gemini cationic surfactant. Its solution properties were determined at various temperatures by conductivity measurements and the fluorescence quenching technique. The CMC increased in the range of 1.85 to 2.77 μmol⋅L−1 as the temperature increased. The aggregation number was determined at various concentrations of NaBr solutions by the fluorescence quenching of pyrene. The thermodynamic parameters of micellization were determined using the mass law equation and the values of ΔG °, ΔH °and ΔS ° were determined for the micellization process.
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页码:921 / 928
页数:7
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