Polymer OrganicInorganic Materials for Membrane
Technology, Their Characteristics and Properties

A. I. Suvorova^a,*, I. S. Tyukova^a, and A. L. Suvorov^b

^aGorky Ural State University, pr. Lenina 51, Yekaterinburg, 620083 Russia

*e-mail: Anna.Suvorova@usu.ru

^bPostovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences,
ul. Akademicheskaya/S. Kovalevskoi 22/20, Yekaterinburg, 620990 Russia

Received October 27, 2010

Abstract—Organo-inorganic nanocomposite glassy films are obtained by the sol–gel method via hydrolytic
polycondensation reactions of silicon and titanium alkoxides in solutions of polymers of different chemical
compositions. The polymer structure and interaction with oxides in the films are investigated by FTIR spectros-
copy, atomic force microscopy, using a particle size analyzer and a number of physicochemical methods. The
presence of nanosized (from ~20 to 370 nm) particles of the oxides in the structure of hybrid films is confirmed.
It is shown that the best practically useful properties are exhibited by the composite films with strong organo-
inorganic polymer–oxide networks. Such films may be used for creating membranes and sorbents for water
purification from harmful organic and ionic admixtures.

Keywords: polysulfone, ethylcellulose, chitosan; silica, titania; hybrid nanocomposites, hydrophilicity, swell-
ing, diffusion, permeability

DOI: 10.1134/S1087659611060198

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