Ras B. Pandey

Department of Physics and Astronomy
University of Southern Mississippi

Fundamental issues in polymer simulations (conformation and dynamics) will be introduced and a brief overview of computer simulation methods (lattice and off-lattice) will be presented. A model for electrophoretic deposition will be considered to address questions: how does the polymer density (p_d) evolve at/near the surface, i.e., how does p_d depend on the molecular weight, temperature, and driving field? How does conformational crossover occur from bulk-to-surface? In the framework of the fundamental issues in interfacial dynamics, data will be presented to show evidence against (widely accepted) superuniversality in favor of nonuniversal scaling for the spread of polymer chains. (Ref.: G.Foo and R. B. Pandey, Phys. Rev. Lett. 79, 2903 (1997); J. Chem. Phys. (in press)).