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