Mixed micelles of n-alkyltrimethylammonium bromides: influence of alkyl chain length

Abstract

The influence of chain length on the composition of micelles in a binary mixture of n-hexyltrimethylammonium bromide and n-octyl-, n-decyl-, n-dodecyl-, n-tetradecyl- and n-hexadecyltrimethylammonium bromides has been determined from an analysis of the variation of the critical micelle concentration (determined by conductivity techniques) as a function of solution composition. Using the theoretical treatment of Motomura, the composition of each compound in mixed micelles was evaluated. The nonideality of mixing was expressed in terms of the molecular interaction parameter β, obtained with the Holland and Rubingh theory. The molecular thermodynamic model of Puvvada and Blanckschtein was used to study the nonideal behaviour of the mixtures.

References

1. V. Mosquera, J. M. del Río, D. Attwood, M. Garcia, M. N. Jones, G. Prieto, M. J. Suarez and F. Sarmiento, J. Colloid Interface Sci., 1998, 206, 66.
2. M. Drifford, L. Belloni and M. Dubois, J. Colloid Interface Sci., 1987, 118, 50.
3. H. J. L. Trap and J. J. Hermans, Proc. K. Ned. Acad. Wet. Ser. B, 1955, 58, 97.
4. M. J. Rosen, A. W. Cohen, M. Dahanake and X. Hua, J. Phys. Chem., 1982, 86, 541.
5. M. Ueno, Y. Kimoto, Y. Ikeda, H. Momose and R. Zana, J. Colloid Interface Sci., 1987, 117, 179.
6. P. M. Holland and D. N. Rubingh, in Mixed Surfactant Systems, ed. P. M. Holland and D. M. Rubingh, ACS Symp. Ser. 501, American Chemical Society, Washington DC, 1992, p. 1.
7. R. M. Hill, in Mixed Surfactant Systems, ed. K. Ogino and M. Abe, Surfactant Sci. Ser. 46, Marcel Dekker, New York, 1993, ch. 11.
8. P. K. Jana and S. P. Moulik, Colloid Polym. Sci., 1994, 272, 834.
9. S. Ghosh and P. Moulik, J. Colloid Interface Sci., 1998, 208, 357.
10. D. Attwood and H. K. Patel, J. Colloid Interface Sci., 1989, 129, 222.
11. C. Triner and A. Makayssi, Langmuir, 1992, 8, 794.
12. R. Bury, C. Triner, C. Chevalet and A. Makayssi, Anal. Chim. Acta, 1991, 251, 69.
13. S. P. Moulik, M. E. Haque, P. K. Jana and A. R. Das, J. Phys. Chem., 1996, 100, 701.
14. M. Pérez-Rodriguez, G. Prieto, C. Rega, L. M. Varela, F. Sarmiento and V. Mosquera, Langmuir, 1998, 14, 4422.
15. K. Motomura, M. Yamanaka and M. Aratono, Colloid Polym. Sci., 1984, 262, 948.
16. P. M. Holland and D. N. Rubingh, J. Phys. Chem., 1983, 87, 1984.
17. J. H. Clint, J. Chem. Soc., Faraday Trans., 1994, 272, 834.
18. S. Puvvada and D. Blankschtein, J. Phys. Chem., 1992, 96, 5567.
19. S. Puvvada and D. Blankschtein, J. Chem. Phys., 1992, 96, 5579.
20. E. H. Lucassen-Reynders, J. Colloid Interface Sci., 1982, 85, 178.
21. M. Villeneuve, H. Sakamoto, H. Minamizawa, N. Ikeda, K. Motomura and M. Aratono, J. Colloid Interface Sci., 1997, 194, 301.
22. S. D. Christian, E. E. Tuker and J. F. Scanchorm, in Mixed Surfactants Systems, ed. P. M. Holland and D. N. Rubingh, ACS Symp. Ser. 501, American Chemical Society, Washington DC, 1992, p. 45.
23. M. Aratono, M. Villeneuve, T. Takiue, N. Ikeda and H. Iyota, J. Colloid Interface Sci., 1998, 200, 161.
24. F. Sarmiento, J. L. López-Fontán, G. Prieto, D. Attwood and V. Mosquera, Colloid Polym. Sci., 1997, 275, 1144.
25. T. Shedlovsky, J. Am. Chem. Soc., 1932, 54, 1411.
26. J. F. Chambers, J. H. Stokes and R. H. Stokes, J. Phys. Chem., 1956, 60, 985.
27. K. J. Mysels and R. Ootter, J. Colloid Sci., 1961, 16, 462.
28. H. C. Evans, J. Chem. Soc., 1956, 579.
29. R. Zielinski, S. Ikeda, H. Nomura and S. Kato, J. Chem. Soc., Faraday Trans., 1, 1988, 84, 151.
30. R. Zana, S. Yiv, C. Strazielle and P. Lianos, J. Colloid Interface Sci., 1981, 80, 208.
31. N. M. van Os, J. R. Haak and L. A. M. Rupert, in Physico-Chemical Properties of Selected Anionic, Cationic and Nonionic Surfactants, Elsevier, Amsterdam, 1993.