In our model, a single polymer chain containing N mer = 200 coarse-grained monomer units is used. Monomers bearing a charge +e or -e are evenly (equidistantly) distributed along the chain to obtain the desired charge fractions ξ of 0, 5 and 10 %, for cationic or anionic chains, respectively. Furthermore, coarse-grained ions (counter-ions of the polyelectrolyte and uniunivalent electrolyte) are explicitly resolved in the implicit solvent environment. All beads, i.e., monomers and ions, interact via the Lennard-Jones (LJ) pair potential, that is