The mean field to Ising crossover in the critical behavior of polymer mixtures : a finite size scaling analysis of Monte Carlo simulations


Monte Carlo simulations of the bond fluctuation model of symmetrical polymer mixtures (chain lengths N~ = N~ = N) are analyzed near the critical temperature T~(N ) of their unmixing transition. Two choices of interaction range are studied, using a square-well potential with effective coordination number z~~~=14 or z~aws, respectively, at a volume fraction… (More)