Da. Kritskaya et al., THERMAL POLYMERIZATION OF ACRYLAMIDE DURING THE FORMATION OF THE STRUCTURES OF ACRYLAMIDE COMPLEXES WITH METAL NITRATES, Russian chemical bulletin, 44(4), 1995, pp. 657-661
The effects of the composition of Mn-II, Co-II or Ni-II nitrate hydrat
e - acrylamide (AAM) mixtures and of the duration df their aging at am
bient temperature on the structurization of acrylamide complexes and o
n the character of their thermal polymerization have been studied by s
canning and isothermic differential calorimetry. Structurization is a
rather prolonged step in the synthesis of acrylamide complexes. The pe
culiarities and rate of this step are determined by the composition of
the mixture and by the nature of the complex-forming compound; it yie
lds several structural modifications of the AAM complexes. The thermal
polymerization of those structural forms of acrylamide complexes that
polymerize at low temperatures may be formally described as polymeriz
ation in an acrylamide-nitrate-water mixture. The effective activation
energy of the polymerization of acrylamide mixed with Mn-II nitrate h
ydrate is 45 kJ mol(-1).