ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 26, Number 4
JKCSEZ 26(4)
August 20, 1982 

The free radical polymerization and copolymerization of N-acetyl α-aminoacrylic acid were investigated. From the result of kinetic investigation of N-acetyl α-aminoacrylic acid in DMF at 60℃, a rate equation of Rp = kp[M]0.97[I]0.59 was obtained. The overall activation energy for the polymerization was found to be 25.2 kcal/mole. Copolymerization of N-acetyl α-aminoacrylic acid with acrylic acid and styrene was carried out for the determination of monomer reactivity ratios. The monomer reactivity ratios for the monomer pairs determined at 70.0±0.1℃ using benzoyl peroxide as an initiator are; r1(N-acetyl α-aminoacrylic acid) = 0.49, r2(acrylic acid) = 1.41, r1(N-acetyl α-aminoacrylic acid) = 0.44, r2(styrene) = 0.91. The values of Alfrey-Price's Q and e parameters for N-acetyl α-aminoacrylic acid were calculated to be 0.51 and 0.16 for the both systems. Differential thermal analysis and thermogravimetry showed that acrylic acid copolymers have poorer thermal stability as compared with the homopolymer of N-acetyl α-aminoacrylic acid.