IRRADIATION FACTOR-DEPENDENCY. SOME VINYL MONOMERS. IRRADIATION CYCLE
QUARTERMASTER RESEARCH AND ENGINEERING COMMAND NATICK MA NATICK United States
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From the results presented for the irradiationinduced polymerization of the nine monomer systems studied in this series, the following conclusions were reached 1 something more than a 3-min cycle at 75 C 45-min cycle used as a convenient one in these studies is the most efficient one for the irradiation-induced polymerization of the systems studied 2 the efficiency of polymerization on a given time cycle decreases markedly for the higher dose rates used in this study 3 the relative efficiency of polymerization on a time cycle compared with continuous irradiation appears to decrease with an increase in dose rate 4 the reaction rate formulations for these systems, derived under vastly different experimental conditions, are not applicable to the parameters used in this study and 5 the most desirable time cycle and temperature depend on the nature of the monomer system.