• Kinetics and mechanism of polymerization initiated by manganic ion-ethoxyacetic acid redox system — A study on the reactivity of vinyl monomers

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      https://www.ias.ac.in/article/fulltext/jcsc/100/06/0469-0476

    • Keywords

       

      Polymerization; acrylic acid; methacrylamide; reactivity

    • Abstract

       

      The kinetics of polymerization of acrylic acid (AA) and methacrylamide (MAM) initiated by the redox system Mn3+ -ethoxyacetic acid (EAA) in aqueous sulphuric acid was studied at 35°C. The polymerization of both the monomers followed the same mechanism, viz., initiation by the primary radical arising from the oxidation of EAA and termination by the Mn3+ ion. The rate coefficientski/k0 andkp/ki were correlated to monomer and polymer radical reactivities, respectively. Acrylic acid was found to have higher monomer and polymer radical reactivities than methacrylamide.

    • Author Affiliations

       

      T Balakrishnan1 S Subbu2 K Ravisankar2

      1. Department of Physical Chemistry, University of Madras, Madras - 600 025, India
      2. Department of Chemistry, Pachaiyappa’s College, Madras - 600 030, India
    • Dates

       
  • Journal of Chemical Sciences | News

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