INTERACTION BETWEEN POLYMER AND DETERGENT IN AQUEOUS SOLUTION

The interaction between sodium dodecyl sulfate (SDS) and polyvinyl acetate (PVAc) derivatives, that is, polyvinyl alcohol, polyvinyl acetate, and partially saponified polyvinyl acetate, has been studied in terms of the solubilization of Yellow-OB, viscosity, and dialysis equilibrium. The amount of solubilized Yellow-OB decreases with the decreasing hydrophobic character of the polymer. On the other hand, it can be expected that the reduced viscosity of polymer-SDS and the amount of adsorbed SDS on the polymer will take on a maximum value at some most suitable degree of saponification of PVAc. The state of the polymer-detergent complex in detergent solution is discussed as a function of the hydrophobic character of the polymer. © 1969.