These complexes are insoluble in methylene chloride and can be separated from {TAIL ~ unreacted polyetherimide} by {HEAD ~ filtration} 
These complexes are insoluble in methylene chloride and can be separated from { TAIL ~ unreacted polyetherimide } by { HEAD ~ filtration }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD