2008•Journal of Qingdao University of Science and TechnologyRequires access

Synthesis of Polyacrylamide by Aqueous Dispersion Polymerization

Yumin Wu

Abstract

Polyacrylamide(PAM) was synthesized in the solution of ammonium sulfate using acrylamide(AM) as raw material,poly(methylacryloylxyethyl trimethy ammonium chloride)(PDMC) as stabilizer and 2,2′-azobis[2-(2-inidazolin-2-yl)-propane] dihydro chloride(VA-044) as initiator by aqueous dispersion polymerization.The effects of dosages of monomer,stabilizer,initiator,inorganic salt and reaction temperature on results of dispersion polymerization were investigated.The results indicated that the optimum concentrations of AM,PDMC,VA-044 and ammonium sulfate were 10%,2.0%,0.05% and 28%respectively,and the optimum reaction temperature was 55℃.Polymer has a relative moleculer weight of about 7.43×106 under above conditions.

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Key concepts: Polyacrylamide, Dispersion polymerization, Polymerization, Monomer, Aqueous solution, Chemistry, Ammonium sulfate, Polymer chemistry