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2007•Acta Petrolei Sinica(Petroleum Processing Section)Requires access

SYNTHESIS OF CATIONIC POLYACRYLAMIDE BY AQUEOUS TWO-PHASE POLYMERIZATION

Dajun Chen

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Abstract

Aqueous two-phase polymerization of acrylamide(AM) and N,N-dimethyla minoethyl methacrylate methyl chloride quaternary salt(DMC) was carried out in the continuous polyethylene glycol(PEG) aqueous solution phase and with V50 as initiator.The effects of mass fraction of PEG aqueous solution on the conversion and the effects of the mass fraction of initiator,the monomer ratio and temperature and monomer on the viscosity of variation and relative molecule mass of polymer were investigated.The results showed that the aqueous two-phase polymerization system was stable when the mass fraction of PEG(w(PEG)) exceeded 6.0%.The conversion of polymerization decreased with the increase of w(PEG).Under the optimum condition: w(Monomer)=18%,n(AM)∶n(DMC)=9∶1,w(V50)=0.029%,w(PEG)=7.5%,polyme-rization temperature of 65℃,aqueous two-phase polymerization system showed good stability.

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Aqueous two-phase polymerization of acrylamide(AM) and N,N-dimethyla minoethyl methacrylate methyl chloride quaternary salt(DMC) was carried out in the continuous polyethylene glycol(PEG) aqueous solution phase and with V50 as initiator.The effects of mass fraction of PEG aqueous solution on the conversion and the effects of the mass fraction of initiator,the monomer ratio and temperature and monomer on the viscosity of variation and relative molecule mass of polymer were investigated.The results showed that the aqueous two-phase polymerization system was stable when the mass fraction of PEG(w(PEG)) exceeded 6.0%.The conversion of polymerization decreased with the increase of w(PEG).Under the optimum condition: w(Monomer)=18%,n(AM)∶n(DMC)=9∶1,w(V50)=0.029%,w(PEG)=7.5%,polyme-rization temperature of 65℃,aqueous two-phase polymerization system showed good stability.

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Available abstract

Aqueous two-phase polymerization of acrylamide(AM) and N,N-dimethyla minoethyl methacrylate methyl chloride quaternary salt(DMC) was carried out in the continuous polyethylene glycol(PEG) aqueous solution phase and with V50 as initiator.The effects of mass fraction of PEG aqueous solution on the conversion and the effects of the mass fraction of initiator,the monomer ratio and temperature and monomer on the viscosity of variation and relative molecule mass of polymer were investigated.The results showed that the aqueous two-phase polymerization system was stable when the mass fraction of PEG(w(PEG)) exceeded 6.0%.The conversion of polymerization decreased with the increase of w(PEG).Under the optimum condition: w(Monomer)=18%,n(AM)∶n(DMC)=9∶1,w(V50)=0.029%,w(PEG)=7.5%,polyme-rization temperature of 65℃,aqueous two-phase polymerization system showed good stability.

Key concepts: Polymerization, Cationic polymerization, Aqueous solution, Polymer chemistry, Monomer, Polyethylene glycol, Chemistry, PEG ratio

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