An Environmentally Friendly Inverse Microemulsion Method to Synthesize Polyacrylamide

Polyacrylamide (PAM) was prepared by a new method of inverse microemulsion polymerization, with (NH4)(2)S2O8-Na2SO3 as initiator and liquid paraffin/Span80-Op10/AM-H2O-NaAc as polymerization system in this paper. The effects of initiator dosage, emulsifier dosage, monomer concentration, oil-water ratio, and temperature on molecular weight, electrical conductivity, particle size distribution, and monomer conversion were studied as well. The results indicate that that the more stable Polyacrylamide (PAM) polymer was prepared under the conditions of initiator dosage of 0.4 similar to 0.5%, emulsifier dosage of 55 similar to 60%, temperature of 40 similar to 45 degrees C, hydrophile-lipophile balance (HLB) value of 8.0 similar to 8.2, and NaAc concentration of 3%.

Automated summary

Polyacrylamide (PAM) was successfully prepared using a new method of inverse microemulsion polymerization, and the effects of various factors on its properties were studied.