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Graft copolymerization of methyl methacrylate upon gelatin initiated by benzoyl peroxide in aqueous medium
Author(s) -
Keleş Havva,
Çeli̇k Meltem,
Saçak Mehmet,
Aksu Levent
Publication year - 1999
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/(sici)1097-4628(19991107)74:6<1547::aid-app29>3.0.co;2-g
Subject(s) - benzoyl peroxide , methyl methacrylate , copolymer , polymer chemistry , gelatin , grafting , thermogravimetric analysis , peroxide , monomer , aqueous solution , thermal stability , methacrylate , chemistry , radical initiator , materials science , nuclear chemistry , organic chemistry , polymer
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°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 × 10 −2 mol/L and the optimum temperature was 80°C. Thermogravimetric analysis showed that the thermal stability of gelatin increased as a result of grafting. Further, such changes in the properties of methyl methacrylate‐grafted gelatin as density, moisture regain, and water uptake were also determined. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 1547–1556, 1999