Interesting experiments with ORBEEZ water beads - Hydrogel Color Beads (Polymer water balls) 00:00 - "Lava lamp" with hydrogel 02:12 - Hydrogel Beads in a Frying Pan 04:48 - Transparent hydrogel in water 05:24 - Hydrogel for flowers What is the Structure of a Hydrogel? Hydrogels are cross linked polymers that have hydrophillic groups. They are often polymers containing carboxylic acid groups. One common polymer used to make hydrogels is sodium polyacrylate. The chemical name for this polymer is poly(sodium propenoate).
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