Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance

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dc.contributor.authorKODAMA, YASKO
dc.contributor.authorRODRIGUES JUNIOR, ORLANDO
dc.contributor.authorGARCIA, RAFAEL H.L.
dc.contributor.authorSANTOS, PAULO de S.
dc.contributor.authorVASQUEZ, PABLO A.S.
dc.coverageInternacionalpt_BR
dc.date.accessioned2016-08-03T17:31:37Z
dc.date.available2016-08-03T17:31:37Z
dc.date.issued2016pt_BR
dc.description.abstractMain 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.extent169-173pt_BR
dc.identifier.citationKODAMA, 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.doi10.1016/j.radphyschem.2016.02.018
dc.identifier.issn0969-806Xpt_BR
dc.identifier.orcidhttp://orcid.org/0000-0003-4168-1626
dc.identifier.orcidhttps://orcid.org/0000-0002-3602-6857
dc.identifier.orcidhttps://orcid.org/0000-0002-6704-1910
dc.identifier.orcidhttps://orcid.org/0000-0002-0127-8130
dc.identifier.percentilfi43.81
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/26534
dc.identifier.vol124pt_BR
dc.relation.ispartofRadiation Physics and Chemistrypt_BR
dc.rightsopenAccesspt_BR
dc.sourceTihany Symposium on Radiation Chemistry, 13th, August 29 – September 3, 2015, Balatonalmadi, Hungarypt_BR
dc.subjectgamma radiation
dc.subjectcellulose
dc.subjectelectron spin resonance
dc.subjectradicals
dc.subjectpreservation
dc.subjectcobalt 60
dc.subjectpaper
dc.subjectscanning electron microscopy
dc.subjectx-ray diffraction
dc.subjectionizing radiations
dc.titleStudy of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonancept_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorPAULO DE SOUZA SANTOS
ipen.autorPABLO ANTONIO VASQUEZ SALVADOR
ipen.autorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.autorORLANDO RODRIGUES JUNIOR
ipen.autorYASKO KODAMA
ipen.codigoautor4074
ipen.codigoautor3075
ipen.codigoautor3498
ipen.codigoautor322
ipen.codigoautor538
ipen.contributor.ipenauthorPAULO DE SOUZA SANTOS
ipen.contributor.ipenauthorPABLO ANTONIO VASQUEZ SALVADOR
ipen.contributor.ipenauthorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.contributor.ipenauthorORLANDO RODRIGUES JUNIOR
ipen.contributor.ipenauthorYASKO KODAMA
ipen.date.recebimento16-08pt_BR
ipen.identifier.fi1.315pt_BR
ipen.identifier.ipendoc22445pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods11
ipen.range.fi0.001 - 1.499
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
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sigepi.autor.atividadeKODAMA, YASKO:538:220:S
sigepi.autor.atividadeRODRIGUES JUNIOR, ORLANDO:322:330:N
sigepi.autor.atividadeGARCIA, RAFAEL H.L.:3498:410:N
sigepi.autor.atividadeSANTOS, PAULO DE S.:4074:220:N
sigepi.autor.atividadeVASQUEZ, PABLO A.S.:3075:220:N
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