Abstract
A ternary system, consisting of 40% macromolecules of species A, one macromolecule of species B, and vacancies (low molecular solvent), is modeled y the Monte Carlo simulation on a classical Flory-Huggins lattice. The monomer distribution functions of A and B species around the center of inertia of A and B molecules are obtained as well as the distribution function of a given A, B chain around its own center of inertia. The latter functions are of Gaussian type for both A and B. From the distribution of A monomers around the A chain, two regions are found: (a) Monomer A and vacancies tend to separate for large nearest neighbor interaction. (b) The polymer A-solvent is macroscopically homogeneous but has local inhomogeneities Simulation d'un systeme ternaire constitue de 40% de polymere macromolecules A, d'une macromolecule B et de lacunes (solvant) sur un reseau de Flory-Huggins. Les fonctions de distribution des monomeres de A et B au voisinage du centre d'inertie des molecules de A et B et la fonction de distribution d'une chaine de A ou B au voisinage de son propre centre d'inertie sont obtenus
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