Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance
dc.contributor.author | KODAMA, YASKO | |
dc.contributor.author | RODRIGUES JUNIOR, ORLANDO | |
dc.contributor.author | GARCIA, RAFAEL H.L. | |
dc.contributor.author | SANTOS, PAULO de S. | |
dc.contributor.author | VASQUEZ, PABLO A.S. | |
dc.coverage | Internacional | pt_BR |
dc.date.accessioned | 2016-08-03T17:31:37Z | |
dc.date.available | 2016-08-03T17:31:37Z | |
dc.date.issued | 2016 | pt_BR |
dc.description.abstract | 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. | |
dc.format.extent | 169-173 | pt_BR |
dc.identifier.citation | 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. <b>Radiation Physics and Chemistry</b>, v. 124, p. 169-173, 2016. DOI: <a href="https://dx.doi.org/10.1016/j.radphyschem.2016.02.018">10.1016/j.radphyschem.2016.02.018</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/26534. | |
dc.identifier.doi | 10.1016/j.radphyschem.2016.02.018 | |
dc.identifier.issn | 0969-806X | pt_BR |
dc.identifier.orcid | http://orcid.org/0000-0003-4168-1626 | |
dc.identifier.orcid | https://orcid.org/0000-0002-3602-6857 | |
dc.identifier.orcid | https://orcid.org/0000-0002-6704-1910 | |
dc.identifier.orcid | https://orcid.org/0000-0002-0127-8130 | |
dc.identifier.percentilfi | 43.81 | |
dc.identifier.uri | http://repositorio.ipen.br/handle/123456789/26534 | |
dc.identifier.vol | 124 | pt_BR |
dc.relation.ispartof | Radiation Physics and Chemistry | pt_BR |
dc.rights | openAccess | pt_BR |
dc.source | Tihany Symposium on Radiation Chemistry, 13th, August 29 – September 3, 2015, Balatonalmadi, Hungary | pt_BR |
dc.subject | gamma radiation | |
dc.subject | cellulose | |
dc.subject | electron spin resonance | |
dc.subject | radicals | |
dc.subject | preservation | |
dc.subject | cobalt 60 | |
dc.subject | paper | |
dc.subject | scanning electron microscopy | |
dc.subject | x-ray diffraction | |
dc.subject | ionizing radiations | |
dc.title | Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dspace.entity.type | Publication | |
ipen.autor | PAULO DE SOUZA SANTOS | |
ipen.autor | PABLO ANTONIO VASQUEZ SALVADOR | |
ipen.autor | RAFAEL HENRIQUE LAZZARI GARCIA | |
ipen.autor | ORLANDO RODRIGUES JUNIOR | |
ipen.autor | YASKO KODAMA | |
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ipen.contributor.ipenauthor | PAULO DE SOUZA SANTOS | |
ipen.contributor.ipenauthor | PABLO ANTONIO VASQUEZ SALVADOR | |
ipen.contributor.ipenauthor | RAFAEL HENRIQUE LAZZARI GARCIA | |
ipen.contributor.ipenauthor | ORLANDO RODRIGUES JUNIOR | |
ipen.contributor.ipenauthor | YASKO KODAMA | |
ipen.date.recebimento | 16-08 | pt_BR |
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ipen.type.genre | Artigo | |
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sigepi.autor.atividade | KODAMA, YASKO:538:220:S | |
sigepi.autor.atividade | RODRIGUES JUNIOR, ORLANDO:322:330:N | |
sigepi.autor.atividade | GARCIA, RAFAEL H.L.:3498:410:N | |
sigepi.autor.atividade | SANTOS, PAULO DE S.:4074:220:N | |
sigepi.autor.atividade | VASQUEZ, PABLO A.S.:3075:220:N |