This paper discusses the application of liquid state methods for the molecu
lar modeling of polymeric liquids at solid surfaces. The techniques of inte
gral equation theory, density functional theory, and computer simulation ar
e described and used to investigate the density profiles of polymer melts a
t smooth surfaces. It is shown that an excellent description of the surface
behaviour of polymers can be obtained with only modest computational effor
t. In particular, the density functional theory is in quantitative agreemen
t with simulation results for a wide range of conditions. (C) 1999 Elsevier
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