Abstract

A study of the initial stages of radiation-induced polymerization of ethyl methacrylate was carried out by a calorimetric method already utilized for an analogous study with methyl methacrylate. In this case also, the polymerization rate was found to vary linearly with the square root of dose rate over wide ranges of dose rate and temperature. Values of rate constants for propagation and termination were obtained by determining their ratio by following the non-stationary states and deriving the initiation rate by means of the DPPH method. The rate constants and their activation energies were found to be close to the corresponding values for methyl methacrylate.

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