{HEAD ~ The products} of the reaction are polymerized by {TAIL ~ hydrolysis} of the alkoxysilane groups to produce an organic containing silica network 
{ HEAD ~ The products } of the reaction are polymerized by { TAIL ~ hydrolysis } of the alkoxysilane groups to produce an organic containing silica network
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH