Interaction behavior of polyion-counterion for sodium polystyrene sulfonate

摘要

The specific conductances are measured for sodium polystyrene sulfonate in water and methanol-water mixture. The equivalent conductivity data against concentration are evaluated by scaling concept. The effects of the solvent composition and the polyelectrolyte concentration on the fractions of uncondensed counterions(f), the polyion conductivitiesλp, the standard state free energies of counterion associationΔGAo, and the polyion transference numberTPare calculated. The charge density(ξ)of sodium polystyrene sulfonate was used for the research article [1] to see the variation of the critical aggregation concentration of cetyltrimethyl ammonium bromide in sodium polystyrene sulfonate against the charge density of sodium polystyrene sulfonate.