SOLUTION OF DIRECT AND INVERSE RHEOKINETI C PROBLEMS FOR THE RADICAL POLYMERIZATION OF ACRYLAMIDE IN AQUEOUS-SOLUTIONS

Theoretical relations are obtained for the viscosity variation during the radical polymerization, when the initiation reaction proceeds acco rding to a second-order kinetic equation. Experimental data reported i n the preceding paper on the rheological kinetics of radical polymeriz ation of acrylamide in water, initiated by a redox system, confirmed v alidity of the derived expressions and showed the possibility to solve an inverse rheokinetic problem and determine the rate constants for t he chain propagation and termination from the curves of viscosity vari ation with time, measured under various synthetic conditions. The E(i) -E(0)/2 value calculated using the temperature dependence of the react ion mass viscosity was 19.3 kJ/mol.