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Synthesis and Application of Ternary Copolymerized Cationic Polyacrylamide

Fengshan Zhou

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Abstract

The ternary cationic flocculant P(AM-DMC-DMDAAC) was synthesized by aqueous solution polymerization with raw materials of acrylamide(AM),methacryloyloxyethyl trimethyl ammonium chloride(DMC) and dimethyl diallyl ammonium chloride(DMDAAC) and with water-soluble azocompound as initiator.Effects of cationic monomer ratio,monomer mass fraction,reaction time,amount of initiator and reaction temperature on the molecular weight of the products were investigated.The results indicate that the molecular weight of the copolymer can reach 5.0×106,and the terpolymer demonstrates excellent water-dissolubility.Meanwhile,the terpolymer shows high capacity for flocculating performance in slurry.

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What this paper is about

The ternary cationic flocculant P(AM-DMC-DMDAAC) was synthesized by aqueous solution polymerization with raw materials of acrylamide(AM),methacryloyloxyethyl trimethyl ammonium chloride(DMC) and dimethyl diallyl ammonium chloride(DMDAAC) and with water-soluble azocompound as initiator.Effects of cationic monomer ratio,monomer mass fraction,reaction time,amount of initiator and reaction temperature on the molecular weight of the products were investigated.The results indicate that the molecular weight of the copolymer can reach 5.0×106,and the terpolymer demonstrates excellent water-dissolubility.Meanwhile,the terpolymer shows high capacity for flocculating performance in slurry.

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Available abstract

The ternary cationic flocculant P(AM-DMC-DMDAAC) was synthesized by aqueous solution polymerization with raw materials of acrylamide(AM),methacryloyloxyethyl trimethyl ammonium chloride(DMC) and dimethyl diallyl ammonium chloride(DMDAAC) and with water-soluble azocompound as initiator.Effects of cationic monomer ratio,monomer mass fraction,reaction time,amount of initiator and reaction temperature on the molecular weight of the products were investigated.The results indicate that the molecular weight of the copolymer can reach 5.0×106,and the terpolymer demonstrates excellent water-dissolubility.Meanwhile,the terpolymer shows high capacity for flocculating performance in slurry.

Key concepts: Cationic polymerization, Copolymer, Monomer, Acrylamide, Polyacrylamide, Ammonium chloride, Aqueous solution, Chemistry

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