Self-Assembled Quaternary Ammonium-Containing Comb-Like Polyelectrolytes for the Hydrolysis of Organophosphorous Esters: Effect of Head Groups and Counter-Ions

Tatiana N. Pashirova, Petr A. Fetin, Alexey A. Lezov, Matvey V. Kadnikov, Farida G. Valeeva, Evgenia A. Burilova, Alexander Yu Bilibin, Ivan M. Zorin

Результат исследований: Научные публикации в периодических изданияхстатья

Аннотация

The aim of this work was to increase the efficiency of catalytic systems for the hydrolytic cleavage of 4-nitrophenyl esters of phosphonic acids. Quaternary ammonium-containing comb-like polyelectrolytes («polymerized micelles») with ester cleavable fragments and a low aggregation threshold were used as catalysts. The synthesis of poly(11-acryloyloxyundecylammonium) surfactants with different counterions (Br, NO3, CH3C6H4SO3) and head groups was realized by micellar free-radical polymerization. Molecular weight, critical association concentration, particle sizes and solubilization properties toward Orange OT were determined. Self-assemblies organized by poly(11-acryloyloxyundecyltrimethyl ammonium) bromide successfully catalyze the hydrolysis of 4-nitrophenyl butylchloromethylphosphonate up to two orders of magnitude compared to aqueous alkaline hydrolysis. The development of these catalysts is promising for industrial applications and organophosphorus compound detoxification.

Язык оригиналаанглийский
Страницы (с-по)1939-1948
Число страниц10
ЖурналChemPlusChem
Том85
Номер выпуска8
DOI
СостояниеОпубликовано - 1 авг 2020

Предметные области Scopus

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