| abstract |
The invention relates to the preparation of a water-soluble anionic polymer, with a molecular weight Mw of 1,000 to 10,000 g/mol and with a polydispersity index I P of less than 3.5. The polymer according to the invention is obtained by polymerisation reaction in water of an unsaturated anionic monomer, in the presence of Cu I or Cu II and an aromatic compound comprising one function selected among hydroxyl, primary amine, secondary amine and tertiary amine directly connected to the aromatic ring. The invention likewise relates to an aqueous composition comprising the polymer according to the invention. |