Monolayers of diblock copolymer at the air-water interface: The attractive monomer-surface case

M. C. Fauré, P. Bassereau, Marcelo Carignano, I. Szleifer, Y. Gallot, D. Andelman

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Abstract

We have studied both experimentally and theoretically the surface pressure isotherms of copolymers of polystyrene-polyethyleneoxide (PS-PEO) at the air-water interface. The SCMF (single chain mean-field) theory provides a very good agreement with the experiments for the entire range of surface densities and is consistent with the experiments if an adsorption energy per PEO monomer at the air-water interface of about one kBT is taken. In addition, the chain density profile has been calculated for a variety of surface densities, from the dilute to the very dense ones. The SCMF approach has been complemented by a mean-field approach in the low density regime, where the PEO chains act as a two-dimensional layer. Both theoretical calculations agree with the experiments in this region.

Original languageEnglish
Pages (from-to)365-375
Number of pages11
JournalEuropean Physical Journal B
Volume3
Issue number3
Publication statusPublished - 1 Dec 1998
Externally publishedYes

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Keywords

  • 82.65.Dp Thermodynamics of surfaces and interfaces

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Fauré, M. C., Bassereau, P., Carignano, M., Szleifer, I., Gallot, Y., & Andelman, D. (1998). Monolayers of diblock copolymer at the air-water interface: The attractive monomer-surface case. European Physical Journal B, 3(3), 365-375.