ИСТИНА

MQ-resin with hydroxyl groups in the organic radical are of interest as potential precursors for producing organic-inorganic polyurethanes. A method of synthesizing such compounds by condensation of the products of hydrolysis of tetraethoxysilane with triethylsilylpropyl ether of triethylene glycol was described. In the present work, the possibility of obtaining MQ-resin with hydroxyl groups in an organic radical by the interaction of bis-(β-oxyethoxymethyl)tetramethyldisiloxane with tetraethoxysilane in an active medium has been studied. It was found that up to 60% of the alcohol groups during the reaction are acetylated. Methanolysis of these oligomers leads to the formation of MQ-resin with (βoxyethoxymethyl)dimethylsiloxane groups.