| abstract |
Water-soluble copolymer comprising, by mass with respect to the total mass of the copolymer: - from 5 to 45 percent of at least one cationic monomer, whose cationicity comes exclusively from one or more quaternary ammonium functional groups; - 50 to 95 percent of at least one monomer of the formula (I): ** Formula ** in which: - R1 is a hydrogen atom or a methyl radical; - Z is a divalent group -C (> = O) -O- or C (> = O) -NH-; - n is an integer between 2 and 200; R2 is a hydrogen atom or a carbon radical, saturated or unsaturated, optionally aromatic, linear, branched or cyclic, comprising 1 to 30 carbon atoms, and 0 to 4 heteroatoms selected from the group comprising O, N and S; the copolymer having a cationic charge density between 0.3 and 2.6 meq / g. |