{HEAD ~ Crosslinkable organosilicon compositions} with controllable modulus can be prepared using organosilicon compounds composed of units of {TAIL ~ the formula} 
{ HEAD ~ Crosslinkable organosilicon compositions } with controllable modulus can be prepared using organosilicon compounds composed of units of { TAIL ~ the formula }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL