Graft copolymerization of methyl methacrylate onto gelatin using KMnO 4 ‐H 2 SO 4  redox system | Zendy

Keleş Havva | Zendy; Saçak Mehmet | Zendy

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Graft copolymerization of methyl methacrylate onto gelatin using KMnO 4 ‐H 2 SO 4 redox system

Author(s) -

Keleş Havva,

Saçak Mehmet

Publication year - 2003

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.12482

Subject(s) - copolymer , potassium permanganate , thermogravimetric analysis , grafting , methyl methacrylate , redox , polymer chemistry , activation energy , gelatin , materials science , yield (engineering) , methacrylate , nuclear chemistry , chemistry , organic chemistry , polymer , composite material , metallurgy

The graft copolymerization of methyl methacrylate onto gelatin was studied using KMnO 4 ‐H 2 SO 4 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

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