Abstract
Surfactant aggregation properties in aqueous and mixed organic/aqueous solutions have attracted considerable interests especially for the applications to the template synthesis of nanoporous inorganic materials. In this work, we study the aggregation behavior of cetyl trimethylammonium bromide surfactant in both aqueous and mixed water/ethanol solutions by the steady-state fluorescence probe technique. The critical micelle concentration (CMC) and the micelle aggregation number were determined in solutions with different ethanol contents. The CMC increases and the aggregation number decreases with increasing ethanol content in solutions. The effect of ethanol on the micelle formation can be treated as a structure breaking process. The density functional theory was used to calculate the charge density distribution over the surfactant molecules in different solvents. The results obtained reveal that the micelle size distribution in solutions can be adjusted by varying the content of ethanol in solvents.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
Palepu, R., Gharibi, H., and Bloor, D.M., Langmuir, 1993, vol. 9, p. 110.
Binana-Limbele, W. and Zana, R., Colloid Polym. Sci., 1989, vol. 267, p. 440.
Perche, T., AuVray, X., Petipas, C., et al., Langmuir, 1997, vol. 13, p. 1475.
Callaghan, A., Doyle, R., Alexander, E., and Palepu, R., Langmuir, 1993, vol. 9, p. 3422.
Burke, S.E., Andrecyk, S.L., and Palepu, R., Colloid Polym. Sci., 2001, vol. 279, p. 131.
Cheng, G.X. and Liu, C., Mater. Chem. Phys., 2002, vol. 77, p. 359.
Zhang, J.L., Li, W., Meng, X.K., et al., J. Membr. Sci., 2003, vol. 222, p. 219.
Zhang, J.L., Li, W., Meng, X.K., et al., Acta Chim. Sin., 2001, vol. 59, p. 2001.
Wolszczak, M. and Miller, J., J. Photochem. Photobiol., A, 2002, vol. 147, p. 45.
Turner, D., Gracie, K., Taylor, T., and Palepu, R., J. Colloid Interface Sci., 1998, vol. 202, p. 359.
Alargova, R.G., Kochijashky, I.I., Sierra, M.L., and Zana, R., Langmuir, 1998, vol. 14.
Turro, N.J. and Yekta, A., J. Am. Chem. Soc., 1978, vol. 100, p. 5951.
Xu, G.Y., Zhang, L., Yang, Y.L., and Huang, X.R., Spectrochim. Acta, A, 2000, vol. 56, p. 2431.
Zana, R., Levy, H., Danino, D., et al., Langmuir, 1997, vol. 13, p. 402.
Zana, R., Levy, H., Danino, D., et al., J. Colloid Interface Sci., 1998, vol. 197, p. 370.
Fang, Y., Liu, X.F., and Xia, Y.M., Wuli Huaxue Xuebao, 2001, vol. 17, p. 828.
Tanford, C., The Hydrophobic Effect, New York: Wiley, 1980.
Author information
Authors and Affiliations
Additional information
__________
From Kolloidnyi Zhurnal, Vol. 67, No. 2, 2005, pp. 186–191.
Original English Text Copyright © 2005 by Li, Han, Zhang, Wang.
This article was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Li, W., Han, YC., Zhang, JL. et al. Effect of ethanol on the aggregation properties of cetyltrimethylammonium bromide surfactant. Colloid J 67, 159–163 (2005). https://doi.org/10.1007/s10595-005-0075-7
Received:
Issue Date:
DOI: https://doi.org/10.1007/s10595-005-0075-7