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