Synthesis and rheological properties in aqueous solution of poly(acrylamide‐co‐sodium allylsulfonate)

The copolymerization of acrylamide (AM) with sodium allylsulfonate (SAS) was studied. The copolymerization rate equation was determined, R p = K [KPS] 0.70 [AM] 1.60 [SAS] −0.60 . The copolymeric composition obtained by nitrogen and sulfur elemental analysis, and 1 H‐NMR method. The reactivity ratios were calculated by the Kelen–Tudos method and the value of r 1 (AM), r 2 (SAS) was determined to be 2.45 and 0.060, respectively. The rheology of aqueous solution of synthetic poly(acrylamide‐co‐sodium allylsulfonate) was determined at different temperatures and flowing activation energy E η were calculated.