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Vol. 25 No. 3 (2013): Vol 25 Issue 3

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Aqueous Polymerization of Vinyl Monomers Initiated by Mn(III)-Amino Acid Chelating Agents

https://doi.org/10.14233/ajchem.2013.13062
G. Siva Kumar
Post Graduate and Research Department of Chemistry, A.P.A. College of Arts and Culture, Palani-624 601, India
N. Krishnaveni
Velalar College of Engineering and Technology, Erode-638 012, India
M. Umayavalli
Post Graduate and Research Department of Chemistry, A.P.A. College of Arts and Culture, Palani-624 601, India
S.P. Manickam
Post Graduate and Research Department of Chemistry, A.P.A. College of Arts and Culture, Palani-624 601, India
S. Ratnasabapathy
Post Graduate and Research Department of Chemistry, A.P.A. College of Arts and Culture, Palani-624 601, India

Corresponding Author(s) : N. Krishnaveni

krishnaveninachimuthu@gmail.com

Asian Journal of Chemistry, Vol. 25 No. 3 (2013): Vol 25 Issue 3

Abstract

The polymerization kinetics of acrylamide initiated by the redox pairs i.e., tris-acetatomanganese(III)dihydrate-ethylenediaminetetraacetic acid and in dilute sulphuric acid medium was investigated. The rate of polymerization (Rp) was proportional to [AM]1.3, [EDTA]0.6 and inverse dependence to [Mn(III)] for acrylamide-Mn(III)-EDTA system and [AM]1.2, [EDTA]0.3 and inverse dependence to [Mn(III)] for acrylamide-Mn(III)-nitriloacetic acid system. The rate of manganic ion disappearance Rm, was directly proportional to [Mn(III)] and [NTA] but independent of monomer for both the systems. Both Rp and Rm were not affected by the changes in [H+], ionic strength, added Mn(II) and Rp decreased with the addition of sodium nitrate. The activation energy was evaluated by using Arrhenius plot. Suitable mechanism has been proposed to explain the observed kinetic data.

Keywords

Tris-acetatomanganese(III)dihydrate-ethylenediaminetetraacetic acid Trisacetatomanganese(III)dihydrate-nitrilotriacetic acid Acrylamide Chelating agent
Siva Kumar, G., Krishnaveni, N., Umayavalli, M., Manickam, S., & Ratnasabapathy, S. (2012). Aqueous Polymerization of Vinyl Monomers Initiated by Mn(III)-Amino Acid Chelating Agents. Asian Journal of Chemistry, 25(3), 1447–1450. https://doi.org/10.14233/ajchem.2013.13062
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