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Conformation and dynamics of a self-avoiding sheet: Bond-fluctuation computer simulation

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Abstract

The conformation and dynamics of a self-avoiding sheet are analyzed by the bond-fluctuating Monte Carlo method. The mean-square displacement of the center of mass of the sheet and that of its center node (Rmath image) show asymptotic diffusive behavior. The segmental dynamics in short and long time regimes can be deduced from the motion of the center node described by the power law equation image with μ ≃ 0.13 and ν ≃ ½, where C1 and C2 are fitting constants and t is the time. The radius of gyration, Rg, scales with the linear size, Ls, of the sheet as RgNγ with γ ≃ ½ and N = Lmath image, and this is consistent with the conformational analysis of open tethered membranes with excluded-volume constraints. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 1041–1046, 2005

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