Patent ID: 7285610

Claim:
Polymer composition that can be obtained by the method comprising bringing into contact with one another an ethylenically unsaturated monomer, a source of free radicals and a compound of formula (IA), (IB) or (IC): in which: R 2 and R 2 ′, which may be identical or different, represent a group of the formula: in which: R 3 and R 4 , which may be identical or different, are selected from the group consisting of a halogen group, —NO 2 , —SO 3 R, —NCO, CN, R, —OR, —SR, —NR 2 , —COOR, O 2 CR, —CONR 2 , —NCOR 2 , and C n F (2n+1) with n being from 1 to 20, in which the groups R, which may be identical or different, represent H or a group selected from the group consisting of: alkyl, alkenyl, alkynyl, cycloalkenyl, cycloalkynyl, aryl, optionally fused to an aromatic or non-aromatic heterocycle, alkaryl, aralkyl, and heteroaryl, which are optionally substituted by one or more identical or different groups selected from the group consisting of halogen, ═O, ═S, OH, alkoxy, SH, thioalkoxy, NH 2 , mono- or di-alkylamino, CN, COOH, ester, amide, C n F 2n+1 , and/or optionally interrupted by one or more atoms selected from the group consisting of O, S, N, and P, or a heterocyclic group optionally substituted by one or more groups as defined above, or R 3 and R 4 , together with the carbon atom to which they are attached, form a group ═O, ═S or a hydrocarbon ring or a heterocycle, R 5 and R 6 , which may be identical or different, represent a group as defined above for R, or R 5 and R 6 together form a C 2 -C 4 hydrocarbon chain optionally interrupted by a hetero atom selected from the group consisting of O, S and N, R 1 and R 1 ′, which may be identical or different, represent a group as defined above for R 3 or R 4 , and p represents an integer from 2 to 10.