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 kB T 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.
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Received: 19 June 1997 / Revised: 2 February 1998 / Accepted: 11 February 1998
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Fauré, M., Bassereau, P., Carignano, M. et al. Monolayers of diblock copolymer at the air-water interface: the attractive monomer-surface case. Eur. Phys. J. B 3, 365–375 (1998). https://doi.org/10.1007/s100510050324
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DOI: https://doi.org/10.1007/s100510050324