Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance
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2016
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Radiation Physics and Chemistry
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Main subject of this article was to study room temperature stable radicals in Co-60 gamma irradiated
contemporary paper using Electron Paramagnetic Resonance spectrometer (EPR). XRD was used to study
the effect of ionizing radiation on the morphology of book paper. SEM images presented regions with
cellulose fibers and regions with particles agglomeration on the cellulose fibers. Those agglomerations
were rich in calcium, observed by EDS. XRD analysis confirmed presence of calcium carbonate diffraction
peaks. The main objective of this study was to propose a method using conventional kinetics chemical
reactions for the observed radical formed by ionizing radiation. Therefore, further analyses were made to
study the half-life and the kinetics of the free radical created. This method can be suitably applied to
study radicals on cultural heritage objects.
Como referenciar
KODAMA, YASKO; RODRIGUES JUNIOR, ORLANDO; GARCIA, RAFAEL H.L.; SANTOS, PAULO de S.; VASQUEZ, PABLO A.S. Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance. Radiation Physics and Chemistry, v. 124, p. 169-173, 2016. DOI: 10.1016/j.radphyschem.2016.02.018. Disponível em: http://repositorio.ipen.br/handle/123456789/26534. Acesso em: 15 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.