Abstract
AbstractThe kinetics of acrylamide polymerization has been investigated by employing cericammoniumnitrate‐2‐chloroethanol redox pair under nitrogen atmosphere at 30 ± 1°C. The rate of monomer disappearance is directly proportional to the concentration of 2‐chloroethanol (1.0 × 10−2 − 10.0 × 10−2 mol. dm−3) and is inversely proportional to the ceric ion concentration (2.5 × 10−3 − 10.0 × 10−3 mol. dm−3) but shows square dependence to the concentration of monomer (5.0 × 10−2 − 25.0 × 10−2 mol. dm−3). The rate of ceric ion disappearance is directly proportional to the initial concentration of ceric ion and 2‐chloroethanol but independent of acrylamide concentration. The viscometric average molecular weight (Mv) decreases on increasing the concentration of ceric ion and increases on increasing the concentrations of acrylamide and 2‐chloroethanol. A tentative mechanism has been proposed.
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