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http://dx.doi.org/10.12925/jkocs.2020.37.2.250

Effect of Alkyl Substituents, Surfactants, and Temperature on the Solubilization of 4-alkylaniline Derivatives by Cationic 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.2, 2020 , pp. 250-259 More about this Journal
Abstract
The solubilization constant (Ks) was determined by the UV-Vis method to investigate the interaction between organic matter (solubilized substance) and surfactant in solubilization. Solubilization constants and thermodynamic functions, according to the hydrophobic interaction between organic mater (4-alkylanilines with different alkyl substituent length) and cationic surfactants (DTAB, TTAB, and CTAB, having different hydrophobic lengths), were measured and calculated at various temperatures and compared with each other. As a result, the hydrophobic interactions between organic matters and cationic micelles increased with increasing the chain length of solute's substituent as well as surfactant's hydrophobe. However, the hydrophobic effect by the alkyl substituent of organic matter was greater than the hydrophobic effect by the surfactant. In addition, the results of the calculated thermodynamic functions showed that 4-alkylaniline was solubilized at the deep place in the micelle and its solubilization was greatly dependent on both the hydrophobic effects of organic matter and surfactant. At the calculated iso-structural temperature, the difference between the maximum and minimum values was less than 1K within the experimental conditions.
Keywords
4-alkylanilines; Alkyl-subsituents; UV-Vis method; Solubilization constant($K_s$); Thermodynamic functions;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 J. Luczak, C. Jungnickel, M. Markiewicz, J. HupKa, "Solubilization of benzene, toluene, and xylene (BTX) in aqueous micellar solutions of amphilic imdazolinium ionic liquids", J. phys. Chem. B, Vol. 117, pp. 5653-5658, (2013)   DOI
2 R. Mallikarjun, D. B. Dadyburjor, "Thermodynamics of Solubilization", J. colloid Interface Sci., Vol. 84, No.1, pp. 73-90, (1981)   DOI
3 M. J. Rosen, Surfactants and Interfacial Phenome, pp. 125-134, John Wiley & Sons, U.S.A, (1978)
4 N. M. Lee, B. H. Lee, "Study on the Solubilization of 4-Chlorobenzoic Acid by Lauryl Sulfobetaine Mixed Surfactant Systems", J. Korean Oil chem. Soc., Vol. 31, No. 4, pp. 612-622, (2014)   DOI
5 M. J. Bae, J. Ch. Lim, "Solubilization Mechanism of Hydrocarbon Oils by Polymeric Nonionic Surfactant Solution", Korean Chem. Eng. Res., Vol. 47, No. 1, pp. 24-30, (2009)
6 Y. Moroi, R. Matuura, "Thermodynamics of Solubilization into Surfactant Micelles: Effect of Hydrophobicity Both Solubilizate Surfactant Molecules", J. colloid Interface Sci., Vol. 125, No. 2, pp. 456-462, (1988)   DOI
7 P. D. Burgo, E. Junquera, E. Aicart, "Mixed Micellization of a Nonionic- Cationic Surfactant System Constituted Byn-Octyl-${\beta}$-D-Glucopyranoside/Dodecyltrimethylammonium Bromide/$H_2O$. An Electrochemocal, Thermodynamic, and Spectroscopic Study", Langmuir, Vol. 20, No. 5, pp. 1587-1596, (2004)   DOI
8 C. Hirose, L. Sepulveda, "Transfer Free Energles of p-Alkyl-Subsituted Benzene Derivatives, Benzene, and Toluene from Water to Cationic and Anionic Micelles and to n-Heptane" J. Phys. Chem., Vol. 85, pp. 3689-3694, (1981)   DOI
9 B. M. Lee, J. H. Kim, S.S. Kim, "Synthesis and Characterization of Interfacial Properties of a Cationic Surfactant Having Three Hydroxyl Groups", Appl. Chem. Eng., Vol. 23, No. 5, pp. 433-439, (2012)
10 J. S. Kim, J. Ch. Lim, "Effect of pH on Physical Properties of Triethanolamine- Ester Quaternary Ammonium Salt Cationic Surfactant System", J. Korean Ind. Eng. Chem., Vol. 20, No. 5, pp. 479-485, (2009)
11 B. H. Lee, "Effects of Substituent, n-Butanol, and Sodium Chloride on the Solubilization of 4-Alkylphenols in TTAB Solutions", Colloid Interface Sci Commun, Vol. 25, pp. 12-15, (2018)   DOI
12 B. H. Lee, "Effects of Substituent, n-Butanol, and Sodium Chloride on the Solubilization of 4-Alkylphenols in TTAB Solutions", Colloid Interface Sci Commun, Vol. 25, pp. 12-15, (2018)   DOI
13 N. M. Lee, B. H. Lee, "Effects of Temperature and surfactant structure on the solubilisation of 4-chlorobenzoic acid by various surfctants", J. Chem. Thermodynamics, Vol. 101, pp. 1-6, (2016)   DOI
14 C. A. Bunton, L. Sepulveda, "Hydrophobic and Coulombic Interactions in the Micellar Binding of Phenols and Phenoxide Ions", J. Phys. Chem., Vol. 83, No. 6, pp. 680-683, (1979)   DOI
15 L. Sepulveda, "Absorbances of Solution of Cationic Micelles and Organic Anions" J. colloid Interface Sci., Vol. 46, No. 3, pp. 372-379, (1974)   DOI
16 B. H. Lee, "Study on the micellization of tetradecyltrimethylammonium bromide by using the solubilization of 4-alkylphenol", Colloids and Surfaces A, Vol. 578, pp. 123599, (2019)   DOI
17 B. H. Lee, "Realtionship between the Micellization of TTAB and the Solubilization of p-Bromophenol TTAB Solution", J. Korean Chem. Soc., Vol. 57, No. 6, pp. 665-671, (2013)   DOI
18 D. C. Lee, B. H. Lee, "Effect of NaCl, n-Butanol, and Temperature on the Micellization of Ammonium Cationic Surfactants (DTAB, TTAB, and CTAB) in Aniline Solution", Journal of the Korean Applied Science and Technology, Vol. 36, No. 2, pp. 407-416, (2019)   DOI
19 B. H. Lee, "Study on the micellization of tetradecyltrimethylammonium bromide by using the solubilization of 4-alkylphenol", Colloids and Surfaces A, Vol. 578, pp. 123599, (2019)   DOI