pss-[3-(1,3-propanediol-2-ethyl-2-methyloxy]propyldimethylsilyloxy)-heptacyclopentyl substituted

2-ethyl-2-[3-[(3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxan-1-yloxy)dimethylsilyl]propoxymethyl]-1,3

Diol-POSS(R), 2-Ethyl-2-[3-[(3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxan-1-yloxy)dimethylsilyl]propoxymethyl]-1,3-propanediol