Aqueous Polymerization of Acrylamide Initiated by K2S2O8-Urea Redox

Abstract

Abstract: The kinetics of aqueous polymerization of acrylamide initiated by potassium pcrsulfate and urea was investigated. The results arc sumarizod in the empirical expression, R_p<∝[AM]^1.5CK₂S₂O₈]^0.45[CO(NH₂)₂]⁰ in the range of CK₂S₂O₈]= (1.036～7.542).10^-5m0l/LandCCO(NH₂)₂= (0.479～47.930)-10^-4 mol/L.The overall activation energy of polymerization equals 51.27 kJ/mol which confirms that this initiation is a redox reaction. The effect of urea on molecular weight of the polymers is discussed.

Key words: Polyacrylamidc-, Rcdox initiation, Kinetics

TrendMD:

Liu QingPu, Ha Runhua, Liu Hongrong, Hu Jinsheng . Aqueous Polymerization of Acrylamide Initiated by K₂S₂O₈-Urea Redox[J]. Chem. J. Chinese Universities, 1989, 10(6): 673.

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Aqueous Polymerization of Acrylamide Initiated by K₂S₂O₈-Urea Redox

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