TY - JOUR
T1 - Monolayers of diblock copolymer at the air-water interface
T2 - The attractive monomer-surface case
AU - Fauré, M. C.
AU - Bassereau, P.
AU - Carignano, M. A.
AU - Szleifer, I.
AU - Gallot, Y.
AU - Andelman, D.
PY - 1998
Y1 - 1998
N2 - 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.
AB - 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.
KW - 82.65.Dp Thermodynamics of surfaces and interfaces
UR - http://www.scopus.com/inward/record.url?scp=0031620779&partnerID=8YFLogxK
U2 - 10.1007/s100510050324
DO - 10.1007/s100510050324
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AN - SCOPUS:0031620779
VL - 3
SP - 365
EP - 375
JO - European Physical Journal B
JF - European Physical Journal B
SN - 1434-6028
IS - 3
ER -