Technical data: Synthesis of polyacrylamide

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This post was last edited by hesonchang214 on 2009-8-8 08:03. Synthesis of cationic polyacrylamide: 12 grams of acrylic acid, purified by distillation, is diluted with 20 milliliters of deionized water. After cooling, it is neutralized using 13 milliliters of a 50% sodium hydroxide solution. This neutralized solution is then mixed with 195 milliliters of a 40% acrylamide solution at a concentration of 40%, which contains 4.5 milligrams of potassium persulfate and 4 milligrams of sodium bisulfite. Deionized water is added to bring the total volume to 300 milliliters. Pour the aforementioned liquid into a flask; 300 milliliters of 12# industrial gasoline (with a boiling point range of 80–120°C) and 2.5 grams of Span-60 have been pre-added to the flask. High-purity nitrogen is introduced to remove oxygen from the reaction system. The mixture is stirred while being heated gradually; the reaction is initiated at 45–50°C, and then the temperature is maintained at 70°C for 1 hour. Finally, the temperature is raised again to remove water, the gasoline is filtered out, and the product is dried to yield the final powdered product.