Addition-curable type liquid silicone rubbers based on phenyl-containing organopolysiloxanes with terminal vinyl groups

摘要

A series of organosilicon rubbers of the addition-curable type containing dimethyland methylphenylsiloxy, or diphenylsiloxy units with terminal vinyl groups were synthesized and used for manufacturing liquid silicone rubbers (LSRs) by addition-curable vulcanization. The physical mechanical characteristics of the LSRs were studied. The obtained LSRs can find use at lower temperatures, since they have low glass transition temperatures, and dimethylsiloxane component crystallization is suppressed in them.