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