In {TAIL ~ addition}, the superabsorbent polymer composition may be post treated with {HEAD ~ a cationic polymer} 
In { TAIL ~ addition } , the superabsorbent polymer composition may be post treated with { HEAD ~ a cationic polymer }
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD