The study of polymerization kinetics of methacrylamide by oxidation: Reduction system using potassium permanganate/glycine in aqueous medium

✍ Scribed by A. A. Mirzaei; H. R. Shaterian; S. M. Habibi

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 106 KB
• Volume: 89
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.12619

✦ Synopsis

Abstract

The polymerization kinetic of methacrylamide with the KMnO~4~/glycine redox system has been investigated volumetrically at 35±0.1°C under nitrogen atmosphere in aqueous sulfuric acid medium in a dimethylsulfoxide/H~2~O mixture (5% v/v). The rates of polymerization were found to obey the following equation: R~p~ ∝ [Methacrylamide]^1.08^[Glycine]^0.44^[KMnO]^0.46^. A glycine end group containing polymethacrylamide was prepared by the MnO/glycine redox system under mild conditions. The reaction proceeded with radical mechanism and the overall energy of activation (E~a~) was calculated to be 29.87 kJ/mol from the Arrhenius plot in the temperature range 25–50°C. Molecular weight of the polymer was determined by viscometry. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 3918–3924, 2003