Polymer adsorption at liquid/air interfaces under lateral pressure

Vered Aharonson, David Andelman, Anton Zilman, Philip A. Pincus and Elie Raphaël

Physica A: Statistical Mechanics and its Applications, 1994, vol. 204, issue 1, 1-16

Abstract: We present calculations of surface tension of absorbed polymer solutions at the liquid/air interface. Lateral changes in the area per monomer on the surface are induced by changing the surface pressure (lateral compression), while keeping the total surface excess fixed. Lateral compression of the adsorbed layer immersed in a good solvent results in an increase in the surface monomer concentration and surface pressure up to a critical area per monomer value where the compressibility of the system vanishes. Our mean-field model is not appropriate to describe more compressed states. Calculations are repeated in theta and bad solvent conditions, and yield similar behavior of the isotherms.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:204:y:1994:i:1:p:1-16

DOI: 10.1016/0378-4371(94)90414-6

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