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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2008, 2, 54—62.

Supramolecular Catalytic Systems Based on the Alkylated Polyethyleneimine, Cationic Surfactants and Calix[4]Arene

E. P. Zhiltsova, Yu. I. Abdyusheva, S. S. Lukashenko, E. M. Kasymova, A. R. Kayupov, A. R. Burilov, A. P. Timosheva, L. A. Kudryavtseva

Author affiliations
A. E. Arbuzov Institute of Organic and Physical Chemistry Kazan Scientific Center of the Russian Academy of Sciences
420088 Kazan, Akad. Arbuzova Str., 8. 

The aggregation and the catalytic properties of the systems based on the alkylated polyethyleneimine, cationic surfactants and calix[4]arene in chloroform have been investigated by dielcometric titration and UV-spectrophotometry methods. The formed mixed aggregates accelerate the process of the interaction of polymer with 4-nitrophenyl-bis(chloromethyl)phosphinate. The catalytic effect depends on the surfactant concentration, the structure of surfactant and the presence of calixarene in solution.

Keywords: dielcometric titration, UV-spectrophotometry, supramolecular catalytic systems, polyethyleneimine, aggregation and the catalytic properties

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