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Arpit Sand,신남재,남현구,곽영제 한국섬유공학회 2021 Fibers and polymers Vol.22 No.4
Inverse suspension polymerization method was applied to prepare poly(itaconic acid) based superabsorbentparticles. The polymerization process was investigated to determine the influence of different parameters on the waterabsorption properties. It was found that processing parameters, such as oil/aqueous phase ratio, surfactant, stirring speed, aswell as concentrations of initiator and crosslinker needed to be optimized to achieve high water absorbency. The hydrolysissensitivity of the divinyl crosslinker in water affected the crosslinking efficiency to show better performance withhydrolytically stable diacrylamide than diacrylate. The washing solvent to remove surfactant also highly influence the waterabsorbency of the prepared SAP particles, and solvent with lower polarity induced the collapse of the pores in the SAPparticles to give lower value of water absorbency.