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

Keles H., Sacak M.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.89, sa.10, ss.2836-2844, 2003 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 10
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1002/app.12482
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2836-2844
  • Anahtar Kelimeler: copolymerization, graft copolymer, density, BENZOYL-PEROXIDE, POLY(ETHYLENE-TEREPHTHALATE) FIBERS, ETHYL ACRYLATE, AQUEOUS-MEDIUM, POLYMERIZATION, ACID, ACRYLONITRILE, PROTEIN, STARCH
  • Ankara Üniversitesi Adresli: Hayır

Özet

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 X 10(-3) mol/L and the optimum temperature of 50degreesC. Activation energy was calculated as 18.6 kcal/mol at the temperature interval of 40-70degreesC. 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. (C) 2003 Wiley Periodicals, Inc.