- Conference date: 3–8 August 2008
- Location: Monterey (California)
We report on results of a new method for probing complex flows of entangled polymer melts that is able to compare simultaneously chain configurations on different length scales and stress distribution in the flow with the predictions of molecular models via multiscale computations. The technique has now been applied to (1) monodisperse linear chains across an entire constriction flow, including re‐entrant corners; (2) centerline flow of a bimodal blend; (3) centerline flow of a comb‐linear blend. It illuminates the structural roles of convective constraint release and chain retraction in avoiding large stress singularities at singular boundary points in complex flows of entangled polymers.
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