Abstract
Density functional theory and Monte Carlo simulations have been used
to study the non-uniform equilibrium charge distribution on weak
polyelectrolytes. For rigid rods, linearized density functional theory
and simulation data show good agreement in a fairly wide parameter
range. In the central part of the rod there appears a slight depletion
of charge which is accumulated at the ends within a range of the
order of the Debye length. For flexible chains, the simulations show
an enhancement of the non-uniformity of the charge distribution.
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