Phosphorylation of alkylated poly(ethyleneimine) in chloroform in the presence of cetyltrimethylammonium bromide and calix[4]resorcinarene |
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| Authors: | G A Gainanova E P Zhil’tsova L A Kudryavtseva S S Lukashenko A P Timosheva A 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, 8 ul. Akad. Arbuzova, 420088 Kazan, Russian Federation |
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| Abstract: | The phosphorylation of alkylated poly(ethyleneimine) with 4-nitrophenyl bis(chloromethyl)phosphinate in chloroform in the
presence of cetyltrimethylammonium bromide (CTAB), calix4]resorcinarene (CR), or their mixture was studied by UV spectrophotometry.
The catalytic effect of CTAB and CR on the process of polymer phosphorylation was shown to depend on the concentration of
the surfactant and poly(ethyleneimine) in solution. The catalytic effect of the system is ascribed to the formation of poly(ethyleneimine)-CTAB,
poly(ethyleneimine)-CR, and poly(ethyleneimine)-CTAB-CR mixed aggregates. Their existence was confirmed by the methods of
light scattering and UV spectroscopy.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 918–923, May, 2007. |
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| Keywords: | poly(ethyleneimine) phosphorylation phosphinic esters surfactants calix-resorcinarenes catalysis micelle formation |
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