Dynamics of polymers across an interface
F Pierce and D Perahia and GS Grest, EPL, 95, 46001 (2011).
The migration of polymers across an interface as welding and self- healing of polymer layers takes place, is in the core of polymer-based devices. Using large-scale molecular-dynamics simulations the motion of polymer chains across an interface has been investigated. Unlike self- diffusion of polymers in melts where the early stages of diffusion are characterized by the reptation-like motion of chains in constraining tube formed by neighboring molecules, we find that interdiffusion across an interface is dominated by motion of the chain ends. Copyright (C) EPLA, 2011
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