Graft copolymerization of methyl methacrylate onto gelatin using KMnO4-H2SO4 redox system

The graft copolymerization of methyl methacrylate onto gelatin was studied using KMnO4‐H2SO4 redox system. The maximum graft yield of 64.5% was obtained at the potassium permanganate concentration of 2.00 × 10−3 mol/L and the optimum temperature of 50°C. Activation energy was calculated as 18.6 kcal...

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Bibliographic Details
Published in:Journal of applied polymer science 2003-09, Vol.89 (10), p.2836-2844
Main Authors: KELES, Havva, SACAK, Mehmet
Format: Article
Language:English
Subjects:
Applied sciences
copolymerization
density
Exact sciences and technology
graft copolymer
Natural polymers
Physicochemistry of polymers
Proteins
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Summary:The graft copolymerization of methyl methacrylate onto gelatin was studied using KMnO4‐H2SO4 redox system. The maximum graft yield of 64.5% was obtained at the potassium permanganate concentration of 2.00 × 10−3 mol/L and the optimum temperature of 50°C. Activation energy was calculated as 18.6 kcal/mol at the temperature interval of 40–70°C. The results of the thermogravimetric analysis showed that the degradation temperature of gelatin increased as a result of grafting. Moreover, some changes in the properties of methyl methacrylate‐grafted samples were also observed. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2836–2844, 2003
ISSN:0021-8995
1097-4628
DOI:10.1002/app.12482