Confinement-induced structural rearrangements in supported self-assembled surfactant layers in aqueous salt solutions are investigated using classical Density Functional Theory. The systematic study of the influence of the nature of electrolyte revealed that 2:1 electrolyte stabilizes the hemicylindrical configuration of ionic surfactant layers, while a confinement-induced transition to a tilted monolayer configuration was found in symmetric 1:1 and 2:2 electrolytes. On the basis of this study we formulate a general model for the energetics of structural rearrangements in supported surfactant layers.
Revised: April 14, 2011 |
Published: March 28, 2011
Citation
Sushko M.L., and J. Liu. 2011.Surfactant Two-Dimensional Self-Assembly under Confinement.Journal of Physical Chemistry B 115, no. 15:4322–4328.PNNL-SA-72856.doi:10.1021/jp2003497