Said copolymer is preferably prepared by {TAIL ~ a step wise aqueous emulsion polymerization} with {HEAD ~ styrene} and modifier being incrementally added 
Said copolymer is preferably prepared by { TAIL ~ a step wise aqueous emulsion polymerization } with { HEAD ~ styrene } and modifier being incrementally added
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH