Generally, {HEAD ~ the amount} of hydrolysis and {TAIL ~ condensation} desired is that amount which will result in a copolymer having the desired viscosity and the desired alkoxy content 
of
Generally , { HEAD ~ the amount } of hydrolysis and { TAIL ~ condensation } desired is that amount which will result in a copolymer having the desired viscosity and the desired alkoxy content
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH