Polyacrylamide is used for water treatment and paper manufacturing, and in applications requiring water soluble polymers. If heated above the melting point, acrylamide may polymerize. Caution, the reaction is exothermic. Reaction times may range from 4- 8 hrs.
C are common.
This reaction may exotherm . In a way this is counterintuitive because we are accustomed to thinking of a polymer solution as consisting of a polymer dissolved in some small molecule substance. If you keep adding polyacrylamide to water, eventually you pass a point where there is more polymer than water, and then you have a solution of water dissolved in polymer. On the other hand, if you have a polymer and solvent where the polymer is not infinitely soluble, there is a point where if you pass that point, and then let time pass, the polymer and the solvent media will phase separate.