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Synthesis and Structural Characterization of Copolymer of Dimethyl Diallyl Ammonium Chloride and Acrylamide

Jing Wang

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Abstract

The factors influencing on the characteristic viscosity in 1 mol/L NaCl aqueous solution at 30℃ of DMDAAC/AM copolymer prepared by redox initiated copolymerization in aqueous solution are investigated: purification of monomer DMDAAC; pH value of reaction mixture (1～5); total concentration of monomers (10-50%); molar ratio of DMDAAC to AM (0.2～1.0); and concentration of initiator K2S2O8NaHSO3 (0.006-0.5%). The copolymerization is conducted at 35℃ in 10 hrs. The DMDAAC/AM copolymer structure is identified by characteristic absorption peaks in its IR spectrum. In treating a black liquor from cellulosepaper making, the flocculating and decolorating capacities of a DMDAAC/AM copolymer prepared is better than that of a commercial flocculant PAM and polyacrylic acid.

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The factors influencing on the characteristic viscosity in 1 mol/L NaCl aqueous solution at 30℃ of DMDAAC/AM copolymer prepared by redox initiated copolymerization in aqueous solution are investigated: purification of monomer DMDAAC; pH value of reaction mixture (1～5); total concentration of monomers (10-50%); molar ratio of DMDAAC to AM (0.2～1.0); and concentration of initiator K2S2O8NaHSO3 (0.006-0.5%). The copolymerization is conducted at 35℃ in 10 hrs. The DMDAAC/AM copolymer structure is identified by characteristic absorption peaks in its IR spectrum. In treating a black liquor from cellulosepaper making, the flocculating and decolorating capacities of a DMDAAC/AM copolymer prepared is better than that of a commercial flocculant PAM and polyacrylic acid.

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Available abstract

The factors influencing on the characteristic viscosity in 1 mol/L NaCl aqueous solution at 30℃ of DMDAAC/AM copolymer prepared by redox initiated copolymerization in aqueous solution are investigated: purification of monomer DMDAAC; pH value of reaction mixture (1～5); total concentration of monomers (10-50%); molar ratio of DMDAAC to AM (0.2～1.0); and concentration of initiator K2S2O8NaHSO3 (0.006-0.5%). The copolymerization is conducted at 35℃ in 10 hrs. The DMDAAC/AM copolymer structure is identified by characteristic absorption peaks in its IR spectrum. In treating a black liquor from cellulosepaper making, the flocculating and decolorating capacities of a DMDAAC/AM copolymer prepared is better than that of a commercial flocculant PAM and polyacrylic acid.

Key concepts: Copolymer, Chemistry, Aqueous solution, Monomer, Ammonium chloride, Polymer chemistry, Acrylamide, Flocculation

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Synthesis and Structural Characterization of Copolymer of Dimethyl Diallyl Ammonium Chloride and Acrylamide — Research Paper | ScholarLens