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The self-organization of the poly(ethylene glycol)(10)monododecyl ether (C12EO10)/poly(ethyleneimine) (PEI)/La(III)/water multicomponent system has been examined in the micellar and liquid-crystalline ranges. A step-by-step investigation of the catalytic effect toward the cleavage of phosphorus acid esters was performed for the following series:  single C12EO10micelles → ternary C12EO10/PEI/water micellar system → quaternary C12EO10/PEI/La(III)/water micellar system → liquid-crystalline mesophase. The quaternary system was found to be an effective nanosized catalyst, demonstrating the complex mechanism of the catalytic action under mild conditions (25 °C, pH 8.0) and the substrate specificity toward the more hydrophobic phosphonate. A marked (ca. 1000-fold) acceleration of the reaction studied as compared to the basic hydrolysis of the substrates was achieved.

A kinetic study of the basic hydrolysis of the substrate in a sodium bis(2-ethylhexyl)sulfosuccinate-decane-water reverse micellar system has shown a change in the reactivity of p-nitrophenyl ethyl chloromethyl phosphonate above the percolation threshold. The applicability of the pseudophase model of micellar catalysis, below and above the percolation threshold, is shown.

The reactivity of ethyl aryl chloromethylphosphonates in the basic hydrolysis reactions in direct micelles of cetyltrimethylammonium bromide depends on both electronic and hydrophobic properties of the substituent in the aryl group, while in the sodium dodecyl sulfate–hexanol–water micellar system it depends only on the electronic nature.

The kinetics of the basic hydrolysis of ethyl p-nitrophenyl ethylphosphonate in the sodium dodecyl sulfate–hexanol –water reverse micellar system has shown that at high pH and low water content the reaction occurs in the surface layer and is adequately described by a pseudophase model.