Abstract
The reaction of heterofunctional condensation of 1,1-dichloro-1-sila-2-oxaphenantrene with α,ω-dihydroxydimethylsiloxane in the presence of pyridine has been investigated and card-type organosiloxane copolymers with regular arrangement of silaoxaphenantrene fragments in dimethylsiloxane chain has been obtained. It is shown, that at small length of linear dimethylsiloxane chain, besides the reaction of intermolecular condensation, intramolecular cyclization takes place with formation of bicyclic compounds. Thermogravimetric, DSC, GPC and X-ray analysis of the synthesised copolymers have been carried out.
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