Patents
The present invention provides a process for the preparation of stabilized copolymers by reacting monomer selected from an acrylamide as herein described with 2-acrylamido 2-methyl propane sulphonic acid by solution polymerization. The reaction facilitate in presence of a redox pair of initiators, at a temperature range 5-50° C, under inert atmosphere selected from nitrogen, helium, argon atmosphere, for a period of 4-10 hrs. The resultant co-polymer is neutralized with caustic soda solution and mixed with a thermal stabilizer selected from cross-linking agent N,N-methyl bis acrylamide, trimethylopropane triacrylate to get desired stabilized copolymer.