PREPARATION AND INVESTIGATION OF SILICONE-RUBBER CONTAINING IMIDE-SILOXANE COPOLYMERS

A study has been carried out on the preparation of some modified imide -siloxane copolymers. This has been accomplished by means of addition of alpha,omega-dihydropoly(dimethylsiloxane)s to N,N'-diallyldiimides by hydrosilylation reaction. The copolymers were characterized by IR a nd NMR spectroscopy methods. Molar mass, molar mass distribution, ther mal and mechanical properties of copolymers were determined. These cop olymers are used as additives, mixing them in different ratios with a silicone polymer and filler to obtain imide-silicone rubbers of high t emperature vulcanizing (HTV) type. Mechanical properties of the vulcan ized rubbers were evaluated.