Effect of nicotinic acid on micellization and viscosity of surfactants in aqueous solutions

Abstract

The effect of nicotinic acid on critical micelle concentration (CMC) and viscosity of sodium dodecyl sulfate, cetylpyridinium bromide, and hexadecyl poly[oxyethylene(20)] alcohol solutions is studied. The values of CMC and micelle ionization degree are obtained. The thermodynamic parameters of micelli zation are determined. The values of Jones-Dole coefficients are determined based on the results of viscosity measurements.