104267-22-3Relevant academic research and scientific papers
Kinetics of retardation in persulphate-Fe3+-bisulphite initiated polymerization of acrylamide
Bajpai,Sharma
, p. 1091 - 1096 (2007/10/03)
The kinetics of persulphate-Fe3+-bisulphite initiated polymerization has been studied at 30±0.2°C in oxygen atmosphere. It has been found that the polymerization kinetics is significantly altered by Fe3+ concentration. At lower concentration (2.0 × 10-4 mol dm-3) of Fe3+ the rate of polymerization follows the rate equation Rp ∝ , [monomer] [S2O82-] while at higher concentration (8.0 × 10-4 mol dm-3) the rate equation becomes Rp ∝ [M][HSO3-]. Besides affecting the polymerization kinetics Fe3+ also decreases the molecular weight of the resulting polymers. The effects of added salts and temperature on the polymerization process have also been investigated and energy of activation is calcualted to be 42.6 kJ mol-1. Retarding effect of various aliphatic alcohols, nitro compounds and nitrophenols has been studied in terms of retardation constants.
