SYNOPSISThis paper is devoted to the synthesis and characterization of superabsorbent polymers based on acrylic acid. These hydrogels were prepared by carrying the inverse suspension polymerization in an aromatic hydrocarbon. The dispersion is stabilized by the mixture of micromolecular and macromolecular emulsifiers. To obtain high swelling and appropriate absorption kinetics, parameters such as initial monomer and cross-linker concentration, range of neutralization, monomer addition rate, temperature, initiating system, stabilizing system, and nature of the organic phase were studied but not reviewed here. Thus, based on these topics a basic formula is obtained to display the effect of some structural parameters on behaviour of superabsorbents utilized.

SYNOPSISThis article is devoted to the synthesis, characterization, and modification of acrylic-based superabsorbents which are synthesized by inverse suspension and solution polymerization techniques. Distilled and saline water absorbency of these hydrogels and the effects of varying process nature on their absorbency characteristics (capacity and rate) are graphically discussed.

SYNOPSISThis article is devoted to the synthesis, characterization, and modification of acrylic-based superabsorbents which are synthesized by carrying out the well-known process of inverse suspension polymerization. The dispersion is stabilized by using a mixture of micromolecular and macromolecular stabilizers. High swelling and appropriate absorption kinetics are obtained, provided that parameters (including initial monomer and crosslinker concentration, range of neutralization degree, initiating and stabilizing system, monomer addition rate, temperature and nature of the organic phase) are being considered. Modifications of crosslinker and comonomer nature and their effects on absorbency characteristics (capacity and rate) of the above-mentioned superabsorbents are graphically presented. Finally, diffusion behavior of superabsorbents is briefly discussed.