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http://dx.doi.org/10.12925/jkocs.2020.37.3.438

Study on the Solubilization of 4-ethylaniline in the aqueous solutions of mixed surfactants  

Lee, Dong-Cheol (Department of Applied Chemical Engineering, Korea University of Tech. & Education)
Lee, Byung-Hwan (Department of Applied Chemical Engineering, Korea University of Tech. & Education)
Publication Information
Journal of the Korean Applied Science and Technology / v.37, no.3, 2020 , pp. 438-447 More about this Journal
Abstract
The critical micelle concentration (CMC) values of the mixed surfactant systems and the solubilization conatant (Ks) values of 4-ethylaniline in those solutions were measured and analyzed by the UV-Vis method. As a result, the mixed surfactant systems of TTAB/LSB and TTAB/TX-100 did not deviate significantly from ideal mixed micellization. However, the mixed systems of SDS/LSB and SDS/TX-100 showed great negative deviations from ideal mixed model. These differences showed that the intensity of the interaction between two components in the mixed micelle was different for each mixed system and that these differences greatly influenced the solubilization of 4-ethylaniline by a mixed surfactant system. Among pure surfactants, an anionic surfactant such as SDS showed a greater Ks value than other ionic surfactants, and the Ks value by each surfactant system decreased in the order of SDS≫TTAB≧LSB>TX-100. In addition, the Ks values of all the mixed surfactant systems were higher than those of the pure surfactants constituting the mixed systems.
Keywords
Mixed surfactant systems; Mixed micelle; UV-Vis method; $K_s$; 4-ethylaniline;
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Times Cited By KSCI : 1  (Citation Analysis)
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