Sm. Mokhtar et al., Radical polymerization and copolymerization behavior of 1-cyanoethanoyl-4-acryloylthiosemicarbzide, J POLYM R, 7(4), 2000, pp. 229-235
1-Cyanoethanoyl-4-acryloylthiosemicarbazide (CEATS) was synthesized for the
first time as a new chelating monomer. Its structure was confirmed by both
elemental and spectral analyses. Radical polymerization and copolymerizati
on of CEATS was been carried out in dimethylformamide (DMF) in the presence
of azobisisobutyronitrile (AIBN) as an initiator. Kinetic studies for the
polymerization behavior of CEATS were performed. The complex formation of t
he CEATS monomer and polymer (PCEATS) with Cu II cation was investigated an
d its stability constant determined. The rate of copolymerization of CEATS
with some conventional monomers, namely vinyl acetate, methyl methacrylate
and acrylonitrile, was measured as a function of the mole fraction of the m
onomers. The reactivity ratios (r(1), r(2)) for the various copolymer syste
ms investigated together with the Q and e values of the CEATS monomer were
determined. Moreover, the thermal gravimetric analysis of the prepared poly
mers and their copolymers with acrylonitrile were also studied.