Abstract A study has been made of the solution polymerization of dialkylsilyl dimethacrylates and of their copolymerization with styrene and methyl methacrylate in solution and in bulk. It was found that in all cases the organosilicon dimethacrylates form soluble cyclolinear polymers obtainable in good yields. The composition, yield and properties of the obtained copolymers depend on the composition of the initial binary mixtures of monomers. The properties of the copolymers are not much affected by the structure of alkyl radicals on the silicon atom in the dialkylsilyl dimethacrylates. Using the “desilylation” principle we prepared from the latter carboxyl containing copolymers having statistically arranged double carboxyl groups in the side chains.