Date of Award
Master of Arts
Dr. Donald C. Berndt
Dr. Robert Anderson
Dr. George Lowry
Masters Thesis-Open Access
A micellar effect upon the rate of hydrolysis of hydroxamic acids in aqueous perfluorooctanoic acid has been demonstrated for hydroxamic acids with chain lengths of six , eight, and ten carbons. In this system the counterion, hydrogenion, is a catalyst. Typical rate constant-surfactant concentration profiles for micellar catalysis were obtained. The results for these hydrolyses are consistent with the pseudo-phase model for micellar effects.
In addition the Arrhenius activation energies were determined for the reaction of octanohydroxamic acid at surfactant concentrations above and below the critical micelle concentration of the surfactant. The activation energy is lower for reaction in the micellar solutions than it is for the non-micellar solutions. This also indicates the micellar effect upon the reaction rate.
Ayoub, "Reactive Counterion Surfactant Catalysis of Hydroxamic Acid Hydrolysis with Perfluorooctanoic Acid" (1986). Master's Theses. 1269.