Elasticity of poly(acrylamide) gel beads

MELEKASLAN D., Gundogan N., Okay O.

POLYMER BULLETIN, vol.50, no.4, pp.287-294, 2003 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 4
  • Publication Date: 2003
  • Title of Journal : POLYMER BULLETIN
  • Page Numbers: pp.287-294


The elastic behavior of swollen ionic poly(acrylamide) (PAAm) gel beads was investigated as a function of the bead diameter. For this purpose, an experimental setup was designed to measure the modulus of hydrogel beads. An inverse suspension polymerization technique was used to obtain spherical beads of sizes 3 to 11 mm. It was observed that the effective crosslink density of PAAm gel beads produced in the same synthesis batch increases with increasing bead diameter, which was attributed to the inverse suspension polymerization condition.