Summary
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.
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Received: 6 November 2002/Revised version: 4 April 2003/ Accepted: 4 April 2003
Correspondence to Oguz Okay
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Melekaslan, D., Gundogan, N. & Okay, O. Elasticity of poly(acrylamide) gel beads. Polymer Bulletin 50, 287–294 (2003). https://doi.org/10.1007/s00289-003-0161-0
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DOI: https://doi.org/10.1007/s00289-003-0161-0