Terpolymerization of acrylamide, acrylic acid, and acrylonitrile: Synthesis and properties

摘要: Free-radical solution terpolymerization of acrylamide, acrylic acid, and acrylonitrile was carried out in a mixture dimethylformamide water (60 : 40,v/v) at 85°C using benzoyl peroxide as the initiator. The polymers were characterized by elemental analysis, IR, 1H-NMR, TGA, viscosity measurements. Elemental analysis data used to evaluate terpolymer composition. reactivity ratios determined Fineman–Ross Kelen–Tudos methods. (r) for copolymerization (1) acid + with (2) acrylamide found be r1 = 0.86 ± 0.09 r2 1.93 0.03, respectively, method. method yielded value 0.05 1.94 0.09, respectively. activation energy values various stages decomposition calculated from TGA analysis. Voluminosity (VE) shape factor (ν) also computed measurements different solvent mixture. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 217–228,