This work studied the kinetics of synthesis of poly (potassium acrylate-co-acrylamide) by inverse suspension copolymerization. Potassium acrylate (KA) and acrylamide (AM) were used as comonomers and N,N'-methylenebisacrylamide (N,N'-MBA) as a crosslinker, ammonium persulphate (NH4)2S2O8 was utilized as a thermal initiator at 60 C for the reaction time as long as 40 min. The relative conversion with parameters such as concentration of (NH4)2S2O8 from 0 to 8.7x10 -3 mole/liter, N,N'-MBA from 0 to 5x10 -2% by mole of comonomer. To investigate the initial conversion of the two monomers and the reaction parameters, (NH4)2S2O8 concentration from 0 to 8.7x10 -3 mole/liter, and N,N'-MBA concentration from 0 to 5x10 -2% by mole of comonomer were used for the copolymerization. As per the kinetic study of this copolymerization, differential and integral methods were used to evaluate the reaction conditions at which the highest water absorption was absorption was obtained. The conditions were the crosslinker concentration at 1.25x10 -2% mole of the comonomer concentration KA-to-AM ratio of 40:60, the initiator concentration of 2.2x10 -3 mole/liter at 60 C. Analysis of the differential kinetic method gave a rate equation of -rp alpha CKA1.22 CAM0.57, which indicated that the conversion of KA to poly (potassium acrylate) was higher than that of AM by two folds. For the elucidation of integral kinetic method, two-step reaction was found. That is, the beginning rate of the KA polymerization to its respective product was faster than that of AM as 2KA R, to yield the rate of equation of -rp alpha CKA2. The second step was for AM conversion to its respective product and further copolymerization with KA at an equimole ratio. This yielded the reaction of KA+AM R-AM and the rate equation of -rp alpha CKA CAM. The copolymers synthesized by the above conditions at 6, 12, 20, 30 and 40 min were tested for water absorption and gave 29+-2, 1101+-56, 1122+-37, 978+-61 and 803+-119 g/g, respectively. When the crosslinker concentrationwas increased from 1.25x10 -2 to 5x10 -2% mole of comonomers, the polymers moduli were increased from 3x10 -2 to 9x10 -2 Pa. These increasing moduli reduced the water absorption from 1122+-37 to 700+-41 g/g. This result was obtained with the synthesis condition of 2.2x10 -2 mole/liter of the crosslinker concentration at 60 C. This research elucidates the phenomena of both copolymerization and water absorption of the copolymers obtained