This is the report on a project to determine the effects of ultraviolet radiation on polyethylene, Teflon, nylon, Mylar, and Acrilan. These materials have been irradiated in a vacuum and in-an inert atmosphere of nitrogen.nDeterioration of these materials is faster for irradiation with short wavelength ultraviolet than it is for long wavelength radiation. Deterioration of polyethylene, nylon, Mylar, and Acrilan is faster in a nitrogen atmosphere than it is in a vacuum. However, Teflon deteriorates faster in a vacuum.nExperimental evidence as to the processes of deterioration are discussed in this report and mechanisms are proposed by which deterioration could take place.
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