Abstract
Abstract Alkaline hydrolysis of acetylsalicylic acid in catonic micelles of N-cetyl-N-ethyl-N,N-dimethylammonium bromide (CDEABr) is discussed. The experimental kinetic results can be explained using the pseudophase kinetic model, and the determined second-order rate constants in micelles are also smaller than those in water, which explains the inhibition effect at high concentration of surfactant. In this paper we present the aggregation number for the pyrene-N-cetylpyridinium chloride system and the values of the micellar properties such as the critical micelle concentration (CMC), and the micellar surface dielectric constant (e), obtained by steady-state fluorescence and conductivity measurements.
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