Diffusion coefficient for reptation of polymers with kinematic disorder

Details Diffusion coefficient for reptation of polymers with kinematic disorder Diffusion coefficient for reptation of polymers with kinematic disorder

2001-07-23

arxiv.org/abs/cond-mat/0107461v2

J. Chem. Phys. 116, 2688 (2002)

Physics

Condensed Matter

Soft Condensed Matter

8 pages, 2 figures, revised text, journal ref. added

Scientific paper

10.1063/1.1450122

We give a lower bound on the diffusion coefficient of a polymer chain in an entanglement network with kinematic disorder, which is obtained from an exact calculation in a modified Rubinstein-Duke lattice gas model with periodic boundary conditions. In the limit of infinite chain length we show the diffusive motion of the polymer to be slowed down by kinematic disorder by the same factor as for a single particle in a random barrier model.

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