The reaction of dehydrocondensation of a,o-bis(trimethylsiloxy)methylhydridesiloxane (n % 53) with allyl alcohol at various ratios of initial compounds, in the presence of anhydrous powders like caustic potassium and platinum chlorohydric acid has been investigated. It was established that in the presence of caustic potassium dehydrocondensation reaction takes place and methylsiloxane oligomers with allylic groups in side chain have been obtained. In the presence of platinum chlorohydric acid competetive dehydrocondensation and hydrosilylation reactions take place with formation of oligomers with various chain links. In late stages of the reaction three-dimensional systems were obtained. During dehydrocondensation the reaction order, reaction rate constants and activation energy were found. The structure of the synthesized oligomers were determined by IR and NMR spectra data. Gel permeation chromatography, differential scanning calorimetric and X-ray analysis of the synthesized oligomers were carried out.

The reaction of hydride addition of a,w-bis(trimethylsiloxy)methylhydridesiloxanes with ally1 glycidyl ether in the presence of platinum chlorohydric acid and Pt/C at the I : 30 ratio of initial compounds has been studied. It was established that when the reaction proceeds without solvent, three-dimensional systems are obtained.The optimal condition of hydride addition reaction, concentration of the solution, the reaction temperature have been determined. The reaction order, activation energy and hydride addition rate constants were found. In the case of platinum chlorohydric acid hydride addition proceeds with inductive period, and faster than in the case of the catalyst platinum on the carbon Pt/C. The reactions of primary and secondary amines with epoxy groups containing organosiloxanes were carried out and comb-type organosiloxanes with aminohydroxy groups in the side chain have been obtained. After protonation of amino nitrogen groups in the side chain water soluble organosiloxane oligomers were obtained.The structure of all synthesized comb-type organosiloxanes were determined by IR, 'H and "C N M R spectra data.

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