Graft copolymerization of methyl methacrylate upon gelatin initiated by benzoyl peroxide in aqueous medium

Keles H., Celik M., Sacak M., Aksu L.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.74, sa.6, ss.1547-1556, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 74 Sayı: 6
  • Basım Tarihi: 1999
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1547-1556
  • Anahtar Kelimeler: gelatin, grafting, methyl methacrylate, benzoyl peroxide, POLY(ETHYLENE-TEREPHTHALATE) FIBERS, BUTYL ACRYLATE, POLYMERIZATION, ACID, STARCH, AZOBISISOBUTYRONITRILE, WOOL, AIR
  • Ankara Üniversitesi Adresli: Evet

Özet

The graft copolymerization of methyl methacrylate upon gelatin was studied using benzoyl peroxide as an organic initiator in aqueous medium. The grafting reactions were carried out within the 65-90 degrees C temperature range, and the effect of monomer and initiator concentrations on the graft yield were also investigated. The maximum graft yield was obtained at a benzoyl peroxide concentration of 0.20 x 10(-2) mol/L and the optimum temperature was 80 degrees C. Thermogravimetric analysis showed that the thermal stability of gelatin increased as a result of grafting. Further, such changes in the properties of methyl methylacrylate-grafted gelatin as density, moisture regain, and water uptake were also determined. (C) 1999 John Wiley & Sons, Inc.