Synonyms: PSS-VINYL-HEPTAISOBUTYL SUBSTITUTED;1-VINYL-3,5,7,9,11,13,-ISOBUTYLPENTACYCL0-(9.5.1.1(3,9).1(5,15).1(7)OCTASILOXANE;1-vinyl-3,5,7,9,11,13,15-isobutylpentacyclo-[9.5.1.13,9.15,15.17,13]octasiloxane;MonovinylIsobutyl-POSS(R), POSS(R)-Monovinyl-isobutyl substituted, 1-Vinyl-3,5,7,9,11,13,15-isobutylpentacyclo-[9.5.1.13,9.15,15.17,13]octasiloxane