Reptation of star polymers in a network: Monte Carlo results of diffusion coefficients
arXiv:cond-mat/9811057 · doi:10.1021/ma981330v
Abstract
We report on Monte Carlo results of diffusion coefficients of lattice star polymers trapped inside a fixed network (de Gennes model). It is found that our data are in agreement with the Helfand-Pearson exponential factor α=0.29. For the pre-exponential power law exponent we find β=2. In contrast to existing theoretical predictions, we find that the number of arms f leads to a pre-exponential factor of the form exp(-0.75 f).
7 pages, to appear in Macromolecules