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

  • T. Balakrishnan
  • S. Subbu
  • K. Ravisankar
Organic
  • 13 Downloads

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 coefficientsk i /k 0 andk p /k i were correlated to monomer and polymer radical reactivities, respectively. Acrylic acid was found to have higher monomer and polymer radical reactivities than methacrylamide.

Keywords

Polymerization acrylic acid methacrylamide reactivity 

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References

  1. Andrulis P J Jr, Dewar M J S, Dietz R and Hunt R L 1966J. Am. Chem. Soc. 88 5473CrossRefGoogle Scholar
  2. Balakrishnan T and Subbu S 1986J. Polym. Sci., Polym. Chem., Ed. 24 2271CrossRefGoogle Scholar
  3. Balakrishnan T and Subbu S 1988J. Polym. Sci., Polym. Chem. Ed. (in press)Google Scholar
  4. Elayaperumal P, Balakrishnan T, Santappa M, and Lenz R W 1979J. Polym. Sci., Polym. Chem. Ed. 17 4099CrossRefGoogle Scholar
  5. Elayaperumal P, Balakrishnan T, Santappa M and Lenz R W 1980J. Polym. Sci., Polym. Chem. Ed. 18 2471CrossRefGoogle Scholar
  6. Elayaperumal P, Balakrishnan T, Santappa M and Lenz R W 1982J. Polym. Sci., Polym. Chem. Ed. 20 3325CrossRefGoogle Scholar
  7. Fuson R C and Wojcik H 1933Organic synthesis (New York: Wiley) pp. 42, 43Google Scholar
  8. Gangadevi N and Mahadevan V 1972Makromol. Chem. 152 177CrossRefGoogle Scholar
  9. Gangadevi N and Mahadevan V 1973Makromol. Chem. 166 209CrossRefGoogle Scholar
  10. Otsu T 1971Prog. Polym. Sci., Jpn. 1 1Google Scholar
  11. Young L J 1975Polymer handbook (eds) J Brandrup and E M Immergut (New York: Interscience) pp. II-396 and II-400Google Scholar

Copyright information

© Indian Academy of Sciences 1988

Authors and Affiliations

  • T. Balakrishnan
    • 1
  • S. Subbu
    • 2
  • K. Ravisankar
    • 2
  1. 1.Department of Physical ChemistryUniversity of MadrasMadrasIndia
  2. 2.Department of ChemistryPachaiyappa’s CollegeMadrasIndia

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