Abstract
A method is presented for numerically sampling functionalintegrals in field theory models of polymer solutionsand melts. The approach effectively relaxes the mean-field approximationin self-consistent fieldtheories of equilibrium polymer phases. Viewed from another perspective, themethod provides an alternative to conventional particle-based simulations of coarse-grained models of polymers. We demonstrate the technique by applying it to examine fluctuation effects on the order-disorder transition in symmetric diblock copolymer melts. Extensions to more complex polymer blends, copolymers, and solutions are outlined.
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