Abstract
We have demonstrated that various zwitterionic and mesoionic amphiphiles possess surfactant properties in formamide and N-methylsydnone, comparable to those observed in aqueous media. We also found that solvophobic interactions in formamide and N-methylsydnone resemble the hydrophobic interactions encountered in water. Self-association of these amphiphiles in non-aqueous solvents was accounted for in terms of interactions between the polar heads of the molecules. The contribution of the polar head to micelliz-ation appeared to be different in formamide and N-methylsydnone than in water, which was largely attributed to solvation effects. Micellization of surfactants in aqueous media involves the formation of hydrogen bonds with water, whereas dipole-dipole interactions are believed to be dominant in formamide and N-methylsydnone.
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© 1991 Springer Science+Business Media New York
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Lattes, A., Marti, M.J., Rico, I., Petipas, C., Auvray, X. (1991). Generalization of the Surfactant Concept: Micellization of Zwitterionic and Mesoionic Amphiphiles in Formamide and N-Methylsydnone. In: Mittal, K.L., Shah, D.O. (eds) Surfactants in Solution. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3836-3_8
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DOI: https://doi.org/10.1007/978-1-4615-3836-3_8
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