| Author | S. Sen, S.K. Kumar & P. Keblinski |
|---|---|
| Title | Viscoelastic Properties of Polymer Melts from Equilibrium Molecular Dynamics Simulations |
| Year | 2005 |
| Journal | Communication |
| Volume | 38 |
| Pages | 650-653 |
| Editor | American Chemical Society |
| Abstract | The dynamics of polymer chains are now generally very well understood in the pioneering frameworks of the Rouse model for short chains, and the reptation model for longer chains.1-5 While these theories yield well-known expressions for the variation of the diffusivity D and viscosity รจ with the chain length N, an open question is the chain length at which one crosses over from Rouse-like behavior to reptation. This length, termed the entanglement length, Ne, is relatively easy to estimate experimentally, but has been hard to access in a simulation due to the fact that, up until recently, there was no satisfactory definition of an entanglement.6,7 |
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