Reactivity of supramolecular systems based on calix[4]resorcinarene derivatives and surfactants in hydrolysis of phosphorus acid esters |
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| Authors: | Irina S Ryzhkina Tat'yana N Pashirova Wolf D Habicher Ludmila A Kudryavtseva Alexander I Konovalov |
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| Institution: | 1. A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Center of the Russian Academy of Sciences, Akad. Arbuzova 8, 420088 Kazan, Russia;2. Dresden University of Technology, Institute of Organic Chemistry, Mommsenstr.13, D-01062 Dresden, Germany |
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| Abstract: | The formation of mixed micelles of amphiphilic calix4]resorcinarenes with aminomethyl (AMC, PAMC), tris(hydroxymethyl)amide (THAC) fragments and the cationic surfactant cetyl trimethylammonium bromide (CTAB) in water and aqueous DMF solutions (10-50% DMF) leads to the decrease of the critical micelle concentration of the systems and the increase of the size of the mixed micelles in comparison with CTAB micelles. The catalytic activity of the mixed systems in the hydrolysis of phosphorus acid esters is higher than those of CTAB micelle and AMC, PAMC or THAC aggregates. |
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| Keywords: | amphiphilic calix[4]resorcinarene critical micelle concentration kinetics micelle formation mixed micelle surfactant |
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