Cooperative Dynamics in Unentangled Polymer Fluids
arXiv:cond-mat/0110423 · doi:10.1103/PhysRevLett.88.025901
Abstract
We present a Generalized Langevin Equation for the dynamics of interacting semiflexible polymer chains, undergoing slow cooperative dynamics. The calculated Gaussian intermolecular center-of-mass and monomer potentials, wich enter the GLE, are in quantitative agreement with computer simulation data. The experimentally observed, short-time subdiffusive regime of the polymer mean-square displacements, emerges here from the competition between the intramolecular and the intermolecular mean-force potentials.
9 pages, latex, 3 figures
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