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Translationally Invariant Slip-Spring Model for Entangled Polymer Dynamics

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Zippelius,  Annette
Fellow Group Polymers, complex fluids and disordered systems, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Chappa, V. C., Morse, D. C., Zippelius, A., & Müller, M. (2012). Translationally Invariant Slip-Spring Model for Entangled Polymer Dynamics. Physical Review Letters, 109: 148302, pp. 148302-148307. doi:10.1103/PhysRevLett.109.148302.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-107F-F
Abstract
The topological effect of noncrossability of long flexible macromolecules is effectively described by a slip-spring model, which represents entanglements by local, pairwise, translationally invariant interactions that do not alter any equilibrium properties. We demonstrate that the model correctly describes many aspects of the dynamical and rheological behavior of entangled polymer liquids, such as segmental mean-square displacements and shear thinning, in a computationally efficient manner. Furthermore, the model can account for the reduction of entanglements under shear.