MONTE-CARLO DIFFUSION-MODEL OF POLYMER COAGULATION

Polymer coagulation is simulated on a lattice by a Monte Carlo diffusi on process in which particles move according to the change in local en ergy. Our model allows, for the first time, a description of the coagu lation process beyond the initial quench state and a reproduction of t he wide variety of polymer structures that can be obtained, ranging fr om dustlike to fingerlike to spongelike morphologies. We show that the se morphologies are fully controlled by the coagulation rate which its elf depends on the miscibility between solvent and coagulant.