Abstract
Copolymers of methyl methacrylate with 9,10-dimethacryloxymethylanthracene have been obtained, in the form of lightly crosslinked organic glasses. The radiothermoluminescence (RTL) of these polymers and its dependence on dosage and on the concentration of the anthracene fragment is investigated. Increase in the number of crosslinkages between the PMMA chains does not lead to the appearance of new maxima, but has a substantial effect on the RTL maxima corresponding to relaxational transitions in the PMMA. It is shown that the RTL emitter is the anthracene fragment. When the polymer is irradiated at 77°K and heated to 300°K a stable yellow colour and green fluorescence are produced, as a result of radiochemical oxidation of the anthracene unit. The emitter of RTL photons is then the oxidation product.
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