Additionally, the copolymers may additionally include {TAIL ~ an initiating constituent} to initiate {HEAD ~ polymerization} 
Additionally , the copolymers may additionally include { TAIL ~ an initiating constituent } to initiate { HEAD ~ polymerization }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD