Comparison among Slip-Link Simulations of Bidisperse Linear Polymer Melts

摘要: Recent simulations of entangled polymer dynamics are based on slip-link models pioneered by Hua and Schieber (J. Chem. Phys. 1998, 109, 10018). In this study, we compare different in their prediction the linear viscoelasticity bidisperse polymers to examine how effectively such account for constraint release. We DT model Doi Takimoto (Philos. Trans. R. Soc. London, Ser. A 2003, 361, 641), NS Nair (Macromolecules 2006, 39, 3386), primitive chain network (PCN) Masubuchi et al. 2001, 115, 4387). It is found that PCN better quantitative agreement with literature data than model. This indicates renewal entanglements along due release, explicitly accounted PCN, not equivalent spatial fluctuations slip-links, as included mean field approach.