Relaxation behaviors of star polymers in the grid model

摘要

The tube theory has made a detailed description for the linear polymer entangled system, while the behavior of entangled star polymers is still determined by a qualitative prediction. In this paper, the dynamical simulation of a three-arms star polymer in the grid model is presented. We record the diffusion coefficient D, the relaxation time for the arms of star polymer tau arm and some other parameters corresponding to different branch length. Therefore, results that are inconsistent with the theoretical begin to emerge.