Free Radical Polymerization of Methyl Methacrylate Using Anthracene Iodine Charge Transfer Complex as Novel Chain Transfer Agent
Corresponding Author(s) : Anuradha Varshney
Asian Journal of Chemistry,
Vol. 24 No. 3 (2012): Vol 24 Issue 3
Abstract
Free radical polymerization of methyl methacrylate initiated by a,a'-azobisisobutyronitrile and anthracene iodine charge transfer complex as novel chain transfer agent was studied in DMSO at 60 ± 0.1 ºC for 2 h under oxygen free condition. The system followed ideal kinetics. The overall activation energy is 43.5 kJ/mol. The average molecular weight is in between 32608- 62662. The FTIR spectra shows band at 3020 and 1725 cm-1 due to phenyl protons of anthracene charge transfer complex and ester stretching of methyl methacrylate, respectively. The 1H NMR spectra confirms the methoxy protons at 3.7 d ppm. Thermogravimetric analysis shows the stability of polymer upto 230 ºC.
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