Title: Properties of a sodium dodecyl sulfate-Brij 35 binary micellar system and their effect on the alkaline hydrolysis of O-ethyl- O-p-nitrophenylchloromethylphosphonate.
Authors: Zakharova, L.; Valeeva, F.; Ibragimova, A.; Zakharov, V.; Kudryavtseva, L.; Elistratova, Yu.; Mustafina, A.; Konovalov, A.; Shtykov, S.; Bogomolova, I.
Abstract: It is found that a sodium dodecyl sulfate-Brij 35 binary mixture inhibits the alkaline hydrolysis of O-ethyl- O- p-nitrophenylchloromethylphosphonate. Tensiometric data and variations in cloud point suggest the synergistic effect of the above surfactants caused by the formation of mixed micelles. The method of solvatochromic probe E T(30) shows that the micropolarity of a medium rises at the sites of localization of substrates solubilized in micelles with an increase in ionic surfactant fraction in mixed aggregates. Variations in micellization properties, micropolarity, and surface potential with the composition of the binary mixture of the surfactants influence the catalytic properties of mixed micelles with respect to the examined reaction.
Subjects: ALKALI metals; SODIUM; HYDROLYSIS; SURFACE active agents; COLLOIDS; ORGANIC chemistry
Publication: Colloid Journal, 2007, Vol 69, Issue 6, p718
ISSN: 1061-933X
Publication type: Academic Journal
DOI: 10.1134/S1061933X07060075

Properties of a sodium dodecyl sulfate-Brij 35 binary micellar system and their effect on the alkaline hydrolysis of O-ethyl- O-p-nitrophenylchloromethylphosphonate.

Zakharova, L.; Valeeva, F.; Ibragimova, A.; Zakharov, V.; Kudryavtseva, L.; Elistratova, Yu.; Mustafina, A.; Konovalov, A.; Shtykov, S.; Bogomolova, I.