A Monte Carlo Study of Equilibrium Polymers in a Shear Flow

Details A Monte Carlo Study of Equilibrium Polymers in a Shear Flow A Monte Carlo Study of Equilibrium Polymers in a Shear Flow

1999-05-22

arxiv.org/abs/cond-mat/9905336v1

Physics

Condensed Matter

Soft Condensed Matter

13 pages, 9 figures, LATEX. EPJ B, accepted May 1999

Scientific paper

10.1007/s100510051001

We use an off-lattice microscopic model for solutions of equilibrium polymers (EP) in a lamellar shear flow generated by means of a self-consistent external field between parallel hard walls. The individual conformations of the chains are found to elongate in flow direction and shrink perpendicular to it while the average polymer length decreases with increasing shear rate. The Molecular Weight Distribution of the chain lengths retains largely its exponential form in dense solutions whereas in dilute solutions it changes from a power-exponential Schwartz distribution to a purely exponential one upon an increase of the shear rate.

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