STABILITY OF POLYCOMPLEXES OF NETWORK POL YELECTROLYTES WITH SURFACE-ACTIVE SUBSTANCES IN AQUEOUS-SALT AND AQUEOUS-ORGANIC MEDIA

The stability of polymer-colloid complexes of network sodium polyacryl ate with various cationic surface-active substances in aqueous-salt an d aqueous-organic media was studied. The stability of such complexes a t small concentrations of a low-molecular electrolyte is determined by the concentration of a molecular-disperse surface-active substance in the medium. At large electrolyte concentrations (of the order of 0.45 mol/l), the destruction of the polymer-colloid complexes represents a cooperative process of detachment of the micellar clusters of the sur face-active substance from segments of the oppositely-charged network. The introduction of an organic solvent (alcohol) in the system produc es destruction of the complexes, which is accompanied by a sharp incre ase in the swelling ability of polycomplex gels.