| abstract |
Water-soluble amphiphilic polymers of general formula (I). (CF DRAWING IN BOPI) in which R represents a C8 -C1 6 alkyl group, M represents a sodium or potassium atom, m and n obey the following relationships: m + n is between approximately 500 and approximately 20,000 and the m / n molar ratio is between 99.5 / 0.5 and 80/20, and in which the N-alkyl acrylamide units are distributed along the polymer chains in a non-random manner, method of preparation and application as thickening agents of aqueous saline solutions. |