The process 1, wherein said brominated monomer is in such amount as to provide a polymer containing from 0.05 to 2% by weight of bromine referred to {HEAD ~ the total weight} of {TAIL ~ the monomeric units} 
of
The process 1 , wherein said brominated monomer is in such amount as to provide a polymer containing from 0.05 to 2 % by weight of bromine referred to { HEAD ~ the total weight } of { TAIL ~ the monomeric units }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL