Kinetics of Polymerization of Acrylamide in Aerosol OT W/O Microemulsions

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  • Takeshi Kawai
    Department of Industrial Chemistry, Faculty of Engineering, Science University of Tokyo1-3 Kagurazaka, Shinjuku-ku, Tokyo 162
  • Yoichi Yasuda
    Department of Industrial Chemistry, Faculty of Engineering, Science University of Tokyo1-3 Kagurazaka, Shinjuku-ku, Tokyo 162
  • Kijiro Kon-no
    Department of Industrial Chemistry, Faculty of Engineering, Science University of Tokyo1-3 Kagurazaka, Shinjuku-ku, Tokyo 162

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Abstract

<jats:title>Abstract</jats:title> <jats:p>Time dependence of the conversion of acrylamide (AAm) initiated with potassium peroxodisulfate (KPS) was examined at various [AAm] and [KPS] in W/O microemulsions of 1,4-bis(2-ethylhexyl) sodium sulfobutanedioate in cyclohexane media at 45 °C. The rate of polymerization (Rp) calculated from the conversion-time profiles yielded the following equation: Rp ∝ [AAm]1.0[KPS]0.5. From these values of reaction orders for AAm and KPS, it was found that the polymerization of acrylamide in W/O microemulsions can be regarded as normal radical polymerization and biradical termination between polymer radicals.</jats:p>

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