Water insoluble hydrophilic copolymers used as {HEAD ~ carriers} for medicaments and {TAIL ~ pesticides} 
Water insoluble hydrophilic copolymers used as { HEAD ~ carriers } for medicaments and { TAIL ~ pesticides }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL