Abstract
AbstractWith calorimetric measurements the kinetics of the free‐radical polymerization of various diacrylates in several polymeric binders have been investigated. The reaction was initiated by radicals formed through photolysis of α‐isopropoxydeoxybenzoin. In each case, the polymerization rate depends on the conversion degree. Mainly, this fact results from changes in the termination mechanism of the polymerization chain reaction. By means of the light intensity exponent such mechanistical changes can be quantitatively followed. Both, the results obtained by stationary and non‐stationary irradiation experiments lead to the same conclusions. The properties of the polymeric binders possess a stronger influence on the kinetics compared with the structural changes of the diacrylates used.
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