| abstract |
A water-soluble copolymer comprising, by weight relative to the total weight of the copolymer: 5 to 45% of at least one cationic monomer; - 50 to 95% of at least one monomer of formula (I); in which: R is a hydrogen atom or a methyl radical; Z is a divalent group -C (= O) -O-, or -C (= O) -NH-; n is an integer from 2 to 200; R is a hydrogen atom or a carbon radical, saturated or unsaturated, optionally aromatic, linear, branched or cyclic, comprising from 1 to 30 carbon atoms, and from 0 to 4 heteroatoms selected from the group comprising O, N, and S; the copolymer having a cationic charge density of between 0.3 and 2.6 meq / g. |