No abstract

No abstract

No abstract

No abstract

The influence of micellar (Mi) and hexagonal (E) mesophases of the cetyldimethylethylammonium bromide--NaOH--water system (I) on the rates of alkaline hydrolysis of, and O,O-di~-nitrophcnyl)methyl phosphonate (4) was studied by UV spectrophotomerry. The binding constants of the substrates, critical mieelle concentrations, and rate constants of reactions in the micellar phase were determined, in micellar solutions of system I, a tenfold increase in the rates of alkaline hydrolysis of 2--4 was observed. An increase in the degree of medium ordering during the formation of the E-phase results in a twofold acceleration of alkaline hydrolysis of 2 and 3 and in the inhibition of this process in the case of 4.