Abstract: A high water-absorbent polyacrylate was obtained by inverse suspension polymerization using monooctadecyl phosphate as dispersion agent. The polymer particle can be easily obtained by filtering without evaporation of solvent. For polymer particles obtained at optimum conditions the deionized-water absorbability and saline solution absorbability were 580 and 68 mL/per gram polymer, respectively.

Key words: sodium acrylate, high water-absorption resin, inverse suspension polymerization