Berlin 2015 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 21: Polymer dynamics

CPP 21.3: Vortrag

Dienstag, 17. März 2015, 10:00–10:15, C 264

Dynamics of Living Polymers — •Ali Malek. and Reiner Kree — Georg August Universität Göttingen

Living polymers constitute an important class of active soft matter. They refer to a large class of polymers whose lengths are ever changing. These changes in length, in many cases, is due to addition (polymerization) or subtraction (depolymerization) of monomer units at their active ends. We construct an analytically tractable model for a flexible chain (Rouse Model), which grows in length by a power law l(t) = γ tα. We find asymptotically exact solutions in the long-time regime, which allow to calculate the dynamical structure and the rheological properties both for free and forced chains. Our analytical results agree with simulations for times larger than a crossover time tc. As a result we give new scaling laws for end-to-end distance correlation, the viscosity and the force against a wall.

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