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Controlled-Release Analysis of Potassium Permanganate Using PMMA Matrix

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http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51157#.VFgogWfHRK0

Excess amount of potassium permanganate has often been used in-situ for chemical oxidation of contaminated sites. The consequences are not limited to secondary contamination and cost but also inefficient remediation. Encapsulation of permanganate using PMMA enables controlled dissolution of the oxidant and aids long-term processes. This paper focuses on the oxidant release efficiency from polymer matrix and analysis of data using existing models for glassy polymers. The efficiency profile obtained using mass ratios of 2:1, 4:1, and 8:1 of PMMA to KMnO4 showed a decrease in the extent of release with increasing mass ratio with 79%, 55.35% and 33.59% respectively. Patches were noticed on the surfaces of PMMA after the release of KMnO4, these were attributed to crevices created by the non-fickian diffusion of the oxidant.
Cite this paper
Ighere, J. and Chawla, R. (2014) Controlled-Release Analysis of Potassium Permanganate Using PMMA Matrix. Journal of Minerals and Materials Characterization and Engineering, 2, 539-544. doi: 10.4236/jmmce.2014.26055. 
 

[1] [1] Huang, K.C., Hoag, G.E. and Chheda, P. (1999) Kinetic Study of the Oxidation of Trichloroethylene by Potassium Permanganate. Environmental Engineering Science, 16, 265-274.
[2] Kirschling, T.L., Gregory, K.B., Minkley, E.G., Lowry, G.V. and Tilton, R.D. (2010) Impact of Nanoscale Zero Valent Iron on Geochemistry and Microbial Populations in Trichloroethylene Contaminanted Aquifer Materials. Environmental Sciences & Technology, 44, 3474-3480.
http://dx.doi.org/10.1021/es903744f
[3] Crimi, M.L. and Siegrist, R.L. (2005) Factors Affecting Effectiveness and Efficiency of DNAPL Destruction Using Potassium Permanganate and Catalyzed Hydrogen Peroxide. Journal of Environmental Engineering ASCE, 131, 1724-1732.
http://dx.doi.org/10.1061/(ASCE)0733-9372(2005)131:12(1724)
[4] Yuan, B., Chen, Y. and Fu, M.-L. (2012) Degradation Efficiencies and Mechanisms of Trichloroethylene (TCE) by Controlled-Release Permanganate (CRP) Oxidation. Chemical Engineering Journal, 192, 276-283. http://dx.doi.org/10.1016/j.cej.2012.03.049
[5] Takami, T. and Murakami, Y. (2011) Development of PEG-PLA/PLGA Microparticles for Pulmonary Drug Delivery Prepared by a Novel Emulsification Technique Assisted with Amphiphilic Block Copolymers. Colloids and Surfaces B: Biointerfaces, 87, 433-438. http://dx.doi.org/10.1016/j.colsurfb.2011.06.004
[6] Pawar, V.K., Singh, Y., Meher, J.G., Gupta, S. and Chourasia, M.K. (2014) Engineered Nanocrystal Technology: In-Vivo Fate, Targeting and Applications in Drug Delivery. Journal of Controlled Release, 183, 51-66. http://dx.doi.org/10.1016/j.jconrel.2014.03.030
[7] Felice, B., Prabhakaran, M.P., Rodríguez, A.P. and Ramakrishna, S. (2014) Drug Delivery Vehicles on a Nano-Engineering Perspective. Materials Science and Engineering: C, 41, 178-195.
http://dx.doi.org/10.1016/j.msec.2014.04.049
[8] Kang, N., Hua, I., Suresh, P. and Rao, C. (2004) Production and Characterization of Encapsulated Potassium Permanganate for Sustained Release as an in Situ Oxidant. Industrial & Engineering Chemistry Research, 43, 5187-5193. http://dx.doi.org/10.1021/ie0499097
[9] Wang, W. and Zhou, M. (2010) Degradation of Trichloroethylene Using Solvent-Responsive Polymer Coated Fe Nanoparticles. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 369, 232-239.
[10] Sarti, G.C. (1988) Fickian and Non-Fickian Diffusion in Solid Polymers.
http://www.unileipzig.de/diffusion/presentations_DFII/pdf/DFII_Sarti.pdf
[11] Motornov, M., Roiter, Y., Tokarev, I. and Minko, S. (2010) Stimuli-Responsive Nanoparticles, Nanogels and Capsules for Integrated Multifunctional Intelligent Systems. Progress in Polymer Science, 35, 174-211. http://dx.doi.org/10.1016/j.progpolymsci.2009.10.004
[12] Manokruang, K. and Manias, E. (2009) Hollow Microspheres and Aqueous Phase Behavior of pH-Responsive Poly(methylmethacrylate-co-methacrylic acid) Copolymers with a Blocky Comonomer Distribution. Materials Letters, 63, 1144-1147. http://dx.doi.org/10.1016/j.matlet.2009.01.046    eww141104lx
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