THE COUNTERION DISTRIBUTION IN SOLUTIONS OF ROD-SHAPED POLYELECTROLYTES (REPRINTED FROM JOURNAL-OF-POLYMER-SCIENCE, VOL 7, PG 543-547)

For solutions containing rod-shaped polyelectrolytes and their counter ions only, the Poisson-Boltzmann equation can be solved explicitly wit hout the usual assumption of the Deybe-Huckel theory. At charge densit ies corresponding to half-neutralized polyacrylic acid a large proport ion of monovalent counterions is located close to the polyion even in solutions as dilute as 1/800 base molar.