Microemulsion copolymerization of methyl methacrylate with acrylonitrile

✍ Scribed by G. V. Ramana Reddy; C. Ramesh Kumar; R. Sriram

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 133 KB
• Volume: 94
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.20966

✦ Synopsis

Abstract

The microemulsion (ME) and conventional emulsion (CE) copolymerizations of methyl methacrylate (MMA) with acrylonitrile (AN) are carried out at 70°C by employing n‐butyl cellosolve as cosurfactant along with sodium lauryl sulfate as surfactant in the reaction medium and potassium persulfate as initiator. The copolymers are characterized by FTIR, NMR, TG/DTA, and GPC techniques. The reactivity ratios are evaluated by employing Fineman‐Ross, Kellen‐Tüdös (K‐T), and Mayo‐Lewis integration methods. The K‐T method yields reactivity ratios, r~MMA~ and r~AN~, for the ME copolymerization of MMA and AN of 1.06 ± 0.01 and 0.14 ± 0.01, and those for the CE copolymerization of MMA and AN are 2.19 ± 0.01 and 0.14 ± 0.01, respectively. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 739–747, 2004