INTERPOLYELECTROLYTE COMPLEXES FORMATION IN DEPENDENCE ON THE NATURE OF POLYELECTROLYTES

Interpolyelectrolyte complexes (PECs) were obtained starting from poly cations with (N,N-dimethyl-2-hydroxypropylenammonium chloride) units i n the main chain and sodium salts of the poly(acrylic acid), on one ha nd, and poly (2-acrylamido-2-methylpropane sulfonic acid), on the othe r hand, as polyanions. The polycations were different as concerns both the content of the quaternary ammonium salt groups and the degree of branching. The polyanions were different both by their structure and m olecular weight. The complex formation was followed through the variat ion of the reduced viscosity and of the conductivity of the reaction m edium vs. the unit molar ratio polyanion/polycation in two ranges of c oncentration.