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

✍ Scribed by Havva Keleş; Meltem Çeli̇k; Mehmet Saçak; Levent Aksu

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 171 KB
• Volume: 74
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19991107)74:6<1547::aid-app29>3.0.co;2-g

✦ Synopsis

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 ϫ 10 Ϫ2 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.