PHOSPHONATE FUNCTIONALIZED POLYENIC COPOLYMER, PROCESS FOR PREPARING THE SAME, COMPOSITIONS COMPRISING THE SAME, AND USE FOR IMPROVING CHARGE ELASTOMERIC DIENIC INTERACTIONS

摘要

The subject of the invention is a phosphonate functionalized polyene copolymer comprising in its main linear chain unsaturated units derived from at least one conjugated polyene monomer and units substituted with a -C (O) -AP (O) OR1OR2 function, in which R1, R2, which may be identical or different, each represents H or a C1-C6 alkyl and A represents a (C1-C6) alkylene radical or a (C1-C5) alkylene radical containing at least one heteroatom. The invention also relates to compositions comprising this copolymer, in particular rubber compositions. The invention also relates to the use of this copolymer in a tire composition further comprising a diene elastomer and a reinforcing filler, for improving the interactions between the filler and the diene elastomer included in said pneumatic composition.