IRRADIATION FACTOR-DEPENDENCY. SOME VINYL MONOMERS: DEGASSING AND IRRADIATION CYCLE
QUARTERMASTER RESEARCH AND ENGINEERING COMMAND NATICK MA NATICK United States
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The combined effect of the irradiation cycle and degassing on monomer systems were considered. The monomer systems used in this study were acrylonitrile, butyl acrylate, styrene, vinyl acetate, acrylonitrile-styrene, butyl acrylatestyrene, and vinyl acetate-styrene. Something more than a 3-min cycle, with the parameters used, was required for an optimal yield of polymer at a given dose rate and dose level. The effects of both degassing and the irradiation cycle were dependent to some extent at least on the monomer system. The effect of degassing was more dependent on the monomer system than was the effect of the irradiation cycle. The relative composite effect of degassing and the irradiation cycle decreased in general with an increase in dose rate and total dose.