We continue our long-term study of the application of the product-reactant
Ornstein-Zernike approach (PROZA) to polymere-fluid models. The PROZA is a
theory that yields monomer-monomer pair correlation functions, from which t
he thermodynamics of a model fluid of polymer molecules can be obtained. He
re we extend our earlier work on hard-sphere chains by adding a van der Waa
ls attraction, modelled by a Yukawa term, to the hard-sphere interaction be
tween monomers. (C) 2001 Elsevier Science B.V. All rights reserved.