| abstract |
The present invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler, a chemical crosslinking agent, and a modifier, optionally already grafted to the diene elastomer, the modifier comprising an associative group and a dipole, the diene elastomer before grafting of the modifier comprising the statistically distributed units UA, UB, UC and UD in a respective molar percentage of m, n, o and p. R and R 2 , which are identical or different, denote a hydrogen atom, a methyl radical or a phenyl radical optionally substituted in the ortho, meta or para position by a methyl radical, m ≥ 50, 0 < o + p ≤ 25, n + o > 0, m, n, o and p being numbers ranging from 0 to 100. |