Study of free radicals in gamma irradiated cellulose of cultural heritage materials using Electron Paramagnetic Resonance
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- 作者：Yasko Kodama ; ykodama@ipen.br" class="auth_mail" title="E-mail the corresponding author ; yasko.kodama@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Orlando Rodrigues Jr ; Rafael Henrique Lazzari Garcia ; Paulo de Souza Santos ; Pablo A.S. Vasquez
- 关键词：EPR ; Cultural heritage ; Paper radicals ; Books and archival materials preservation ; Gamma radiation
- 刊名：Radiation Physics and Chemistry
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：124
- 期：Complete
- 页码：169-173
- 全文大小：1186 K
文摘
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Gamma irradiation is a safe option to stop fungi and insect attack of books.
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Proposed model fits statistically well.
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Model is useful to calculate order of reaction through EPR signal decay.
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Life of cellulose free radical can be predicted.
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CaCO3 presence did not affect EPR spectra of cellulose, neither the proposed model.
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Further studies of cultural heritage paper should consider low absorbed doses.