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has been cited by the following article:

• TITLE: Controlled-Release Analysis of Potassium Permanganate Using PMMA Matrix

  AUTHORS: Jude O. Ighere, Ramesh C. Chawla

  KEYWORDS: PMMA, Controlled-Release, Permanganate, Analysis, Encapsulation

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.2 No.6, November 3, 2014

  ABSTRACT: 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.