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Synthesis of amphoteric inartificial high molecule flocculent using starch as base material

Ma Xi

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Abstract

This paper reports the method for synthesis of amphoteric inartificial high molecule flocculent:starch as base material; diallydimethyl ammonium chloride, acrylamide, and methacrylic acid as material; using inverse emulsion polymerization with four member polymerization. We investigate various factors: concentration of initiator, emulsifier, and monomer; oil/water ratio; monomer/starch ratio; reaction temperature and time; affecting product performance: transformation ratio, graft ratio, graft efficiency, degrees of positive and negative ionization. Using orthogonal experiment, we determine the optimum condition: (NH 4) 2S 2O 8=0.330?mmol/L, NH 2CONH 2=2.50?mmol/L, M=30%, monomer/starch(in mass)=1.5∶1, AM/DMDAAC/MAA(in mass)=70∶20∶10,E=8%, oil/water(in volume)=1.4∶1,initiating time=10?min, reaction temperature=45?℃,reaction period of time=4?h?

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This paper reports the method for synthesis of amphoteric inartificial high molecule flocculent:starch as base material; diallydimethyl ammonium chloride, acrylamide, and methacrylic acid as material; using inverse emulsion polymerization with four member polymerization. We investigate various factors: concentration of initiator, emulsifier, and monomer; oil/water ratio; monomer/starch ratio; reaction temperature and time; affecting product performance: transformation ratio, graft ratio, graft efficiency, degrees of positive and negative ionization. Using orthogonal experiment, we determine the optimum condition: (NH 4) 2S 2O 8=0.330?mmol/L, NH 2CONH 2=2.50?mmol/L, M=30%, monomer/starch(in mass)=1.5∶1, AM/DMDAAC/MAA(in mass)=70∶20∶10,E=8%, oil/water(in volume)=1.4∶1,initiating time=10?min, reaction temperature=45?℃,reaction period of time=4?h?

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Available abstract

This paper reports the method for synthesis of amphoteric inartificial high molecule flocculent:starch as base material; diallydimethyl ammonium chloride, acrylamide, and methacrylic acid as material; using inverse emulsion polymerization with four member polymerization. We investigate various factors: concentration of initiator, emulsifier, and monomer; oil/water ratio; monomer/starch ratio; reaction temperature and time; affecting product performance: transformation ratio, graft ratio, graft efficiency, degrees of positive and negative ionization. Using orthogonal experiment, we determine the optimum condition: (NH 4) 2S 2O 8=0.330?mmol/L, NH 2CONH 2=2.50?mmol/L, M=30%, monomer/starch(in mass)=1.5∶1, AM/DMDAAC/MAA(in mass)=70∶20∶10,E=8%, oil/water(in volume)=1.4∶1,initiating time=10?min, reaction temperature=45?℃,reaction period of time=4?h?

Key concepts: Monomer, Starch, Ammonium chloride, Acrylamide, Methacrylic acid, Polymerization, Emulsion polymerization, Chemistry

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