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