The copolymers have utility as {HEAD ~ compatibilizers} for {TAIL ~ blends} of polyphenylene ether and polyetherimide 
for
The copolymers have utility as { HEAD ~ compatibilizers } for { TAIL ~ blends } of polyphenylene ether and polyetherimide
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH