Аннотация:Dense purely methylsiloxane molecular brushes with highmolecular masses were obtained by the ‘grafting to’ method.Vinyl groups of poly(vinyldimethylsiloxy)methylsiloxanewere converted into (chlorodimethylsilyl)ethyl ones whoseactive chlorine atoms were replaced by monofunctionaldimethylsiloxane oligomers having OLi terminal group toarrange side arms of the product. The molecular brushesthus prepared were characterized using physicochemicalmethods of analysis.