Вестник Нижегородского университета им. Н.И. Лобачевского. Серия: Социальные науки

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Title of Article

THE FUNCTIONALIZATION DEGREE EFFECT ON PROPERTIES OF A POLYIMIDE MACROINITIATOR IN CHLOROFORM SOLUTIONS

Issue	5
Date	2013

Article type	scientific article	UDC	541(515+64):542.952
Pages	124-128	Keywords	hydroxyl-containing polyimides, polymer-analogous reactions, static and dynamic light scattering, supramolecular structures

Authors

Ilgach D.M.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Filippov A.P.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Belyaeva E.V.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Ignateva A.V.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Meleshko T.K.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Bogorad N.N.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg
Yakimanskiy A.V.Institut vysokomolekulyarnykh soedineniy RAN, Sankt-Peterburg

Abstract

Using polymer-analogous reactions of hydroxyl-containing polyimides with 2-Br-isobutyroyl bromide in the presence of triethylamine and potassium iodide as a catalyst, multicenter polyimide macroinitiators of controlled atom transfer radical polymerization are obtained, having different functionalization degrees with 2-Br-isobutyrate groups. Molecular weights of macroinitiators were determined in N,N-dimethylformamide solutions. Using static and dynamic light scattering techniques, we show that supramolecular structures are formed in the chloroform solutions due to the interactions of hydroxyl groups. The size and amount of these supramolecular structures depend on the sample functionalization degree.

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