The modified polyolefin is {HEAD ~ a branched graft copolymer} and comprises a polyolefin in the backbone with {TAIL ~ functional groups} grafted thereto 
The modified polyolefin is { HEAD ~ a branched graft copolymer } and comprises a polyolefin in the backbone with { TAIL ~ functional groups } grafted thereto
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH