A Kinetic Method to Estimate Dissociation Degrees of Micellar Aggregates in TTAB-Alcohol Aqueous Micellar Solutions

摘要

The reactions of dehydeochlorination of 1,1-trichloro-2,2-bis(p-chlorophenyl)ethane. DDT, and 1,1-dichloro-2,2-bis(p-chlorophenyl)ethane, DDD, with hydroxide ions were studied in various TTAB-alcohol (TTAB = tetradecyltrimethylammonium bromide) aqueous micellar solutions as a function of alcohol conetnet. The alcohols used were heptanol, hexanol, pentanol, butanol, isobutanol, tert butanol, prokpanol and isopropanol. Kinetic data show that the dissociation degree of the micelles is the main factor controlling reactivity in all the TTAB-alcohol micellar solutions. This fact permits the development of a kinetic method in order to estimate the dissociation degree of the micellar saggregates present in the alcohol-TTAB aqueous micellar solutions.