Abstract
The formation of nonstoichiometric polyelectrolyte complexes of poly-4-vinyl-N-ethyl-pyridinium salts (a lyophilising electrolyte) and polyacrylic acid (blocking polyelectrolyte) has been investigated. It is shown that nonstoichiometric complexes are formed only when the degree of binding of the low molecular weight counter ion is slight. Otherwise insoluble stoichiometric polyelectrolyte complexes are formed as a result of the intermolecular reaction. Stability of the nonstoichiometric complexes in solution depends on the degree of binding of low molecular weight counter ions by the lyophilising polyelectrolyte macromolecules.
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