Abstract
Effective dipoles in charged monolayers and permanent dipoles in neutral ones are shown to have a drastic effect on the structure and phase transitions of insoluble Langmuir monolayers. These long-range and repulsive dipolar interactions stabilize undulating phases in thermodynamic equilibrium. Results are presented for two cases: (i) Close to a liquid-gas critical point, (ii) At low temperatures. Possible implications of the former on the liquid-gas transition and of the latter to the liquid-solid and liquid expanded-1iquid condensed transitions are discussed. In an ionic solution, the undulation periodicity can be controlled by the strength of the ionic solution.
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Andelman, D., Brochard, F., Joanny, JF. (1987). Structured Monolayers of Charged and Polar Molecules at the Liquid/Air Interface. In: Bellissent-Funel, MC., Neilson, G.W. (eds) The Physics and Chemistry of Aqueous Ionic Solutions. NATO ASI Series, vol 205. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3911-0_19
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DOI: https://doi.org/10.1007/978-94-009-3911-0_19
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