(DIMETHYL(NORBORNENYLETHYL)SILYLOXY)HEP&

[(Dimethyl(norbornenylethyl)silyloxy)dihydroxy]-POSS(R)

9-{dimethyl[2-(5-norbornen-2-yl)ethyl]silyloxy}-1,3,5,7,9,11,14-heptacyclopentyltricyclo[7.3.3.15,11]heptasiloxane-1,5-diol