Abstract
1. A series of organosilicon peroxides R1O(SiMe2O)nSiMe2OOR2 and (R3Me2SiO)mSiMe3−m-OOCMe3, where R1=Me3C, Me3Si, or Ph; R2=Me3C, Me2PhC; R3=Me, Ph; n=0, 1, 2; and m=1, 2, 3, were synthesized by reactions of the corresponding chlorosiloxane with tert-butyl or cumyl hydroperoxide in the presence of pyridine. 2. Siloxane peroxides are effective initiators of the copolymerization of oligoorganovinylsiloxanes and methyl acrylate. 3. The copolymer formed is more thermally stable than samples obtained in the presence of tert-butyl or dicumyl peroxide.
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