Hydrodynamic Self-Consistent Field Theory for Inhomogeneous Polymer Melts

Details Hydrodynamic Self-Consistent Field Theory for Inhomogeneous Polymer Melts Hydrodynamic Self-Consistent Field Theory for Inhomogeneous Polymer Melts

2006-03-28

arxiv.org/abs/cond-mat/0603769v2

Physics

Condensed Matter

Soft Condensed Matter

Revised as per peer review

Scientific paper

10.1103/PhysRevLett.97.114501

We introduce a mesoscale technique for simulating the structure and rheology of block copolymer melts and blends in hydrodynamic flows. The technique couples dynamic self consistent field theory (DSCFT) with continuum hydrodynamics and flow penalization to simulate polymeric fluid flows in channels of arbitrary geometry. We demonstrate the method by studying phase separation of an ABC triblock copolymer melt in a sub-micron channel with neutral wall wetting conditions. We find that surface wetting effects and shear effects compete, producing wall-perpendicular lamellae in the absence of flow, and wall-parallel lamellae in cases where the shear rate exceeds some critical Weissenberg number.

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