EFFECT OF SODIUM POLY(METHYL METHACRYLATE) ON THE MOLECULAR MOBILITY OF ALKYLTRIMETHYLAMMONIUM BROMIDES IN MICELLES

Rotational mobility of spin probe in micelles of alkyltrimethylammoniu m bromides (ATMAB) and polymer-colloid complexes of ATMAB with sodium salt of polymethacrylic acid was investigated. An increase in the leng th of hydrocarbon radical of surfactant molecule results in a decrease in the rotational mobility of the probe in a micelle. It was shown th at the mobility of surfactant molecules inside intramolecular micelles of complexes decreases in comparison with free micelle due to polyele ctrolyte-surfactant interaction. The variation in the composition of p olymeric complex, irrespective of its solubility, slightly affects the rotational mobility of spin probe. The conclusion was drawn that pack ing density of intramacromolecular micelles and the mobility of surfac tant molecules in a complex varies slightly with the variation in the composition of a complex and during the transition from soluble to ins oluble complexes. The addition of low-molecular-weight electrolyte to the solution results in the destruction of polymer-colloid complexes.