I have synthesize Acrylic acid based hydrogel but it remains rubbery.How can I get the powder form of hydrogel?

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Hydrogel is a water-swollen, and cross-linked polymeric network produced by the simple reaction of one or more monomers. and the polymer of acrylic acid cross-linked with a polyfunctional...

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I have synthesized acrylic acid based hydrogel but it remains rubbery. How can I get the powder form of hydrogel?

Partially neutralized AA was used as monomer and polymerization carried out in aqueous medium.

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Gholamali Farzi

You can heat the gel to about 90°C for sometime and then mill the dried gel to obtain powder

Daniel Crespy

You can use the suspension polymerization process. You will get beads that you can usually dry to obtain a powder.

it appears to coagulate while drying that may lead to a bulk? So how can we dry the beads avoiding this phenomenon?

By freeze-drying