Dynamic Behavior of an Addition Polymerization in a Batch Reactor

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An activated monomer is obtained by the reaction .


Higher molecular weight polymers are obtained by the reaction .

This Demonstration solves the system of second-order rate equations for user-set values of the activation rate constant, , and the polymerization rate constant, .

In addition, the monomer and polymers concentrations, up to , are plotted versus time.

The mass balance equations are


, for ,


You can easily see by looking at the equations that is a decreasing function of time. Thus, after a certain time and all species reach a steady-state value because the polymerization reactions will stop when the monomer is exhausted.


Contributed by: Housam Binous and Ahmed Bellagi (March 2011)
Open content licensed under CC BY-NC-SA



S. M. Walas, Chemical Reaction Engineering Handbook of Solved Problems, New York: Gordon and Breach Publishers, 1995 pp. 286–287.

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