Abstract
We present molecular dynamics simulations on strongly charged polyelectrolytes
in poor solvent. The resulting pearl-necklace conformations are analyzed
in detail. Fluctuations in the number of pearls and their sizes lead
only to small signatures in the form factor and the force-extension
relation, which is a severe obstacle for experimental observations.
We find that the position of the first peak in the structure factor
varies with the monomer density as $\rho^0.35$ for all
densities. This is a qualitative difference to polyelectrolyte solutions
in good solvent which scale as $\rho^1/3$ and $\rho^1/2$ in the
dilute and semi-dilute concentration regime, respectively.
- chain
- coexistence,
- density
- dependence,
- dynamics
- factor
- factor,
- fluctuation,
- force-extension
- form
- length
- molecular
- necklace,
- peak,
- pearl
- polyelctrolytes,
- poor
- relation
- scaling,
- simulation,
- single
- solvent,
- structure
- type
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