A self-consistent-field integral equation theory for nonuniform polymer fluids

An integral equation theory is developed for nonuniform polymer fluids. It is based on an exact formulation of the density functional theory for polymers, which is essentially identical in form to the popular self-consistent-field approximations. A nonuniform site–site Ornstein–Zernike equation is obtained. As well, the Triezenberg–Zwanzig–Wertheim–Lovett– Mou–Buff equations are generalized to polymer fluids. The Percus–Yevick and mean spherical approximations are suggested as plausible closures to these equations.