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2013 | 11 | 7 | 928-935
Article title

ESR and XRD investigation of effects induced by gamma radiation on PVA-TiO2 membranes

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EN
Abstracts
EN
The effects of gamma radiation on the local structure of PVA membranes containing TiO2 were investigated by ESR and XRD methods. An intense ESR signal is observed after irradiation at 16 KGy dose. This signal appears only for irradiated samples and it is associated with the breaking of the polymeric chain, followed by local reorganization of the polymeric segments and the apparition of the unpaired electrons and free radicals. The intensity of the signal decreases with the concentration of TiO2, indicating a shielding effect of the dopand. That the modification of local order of the polymeric chains has been modified after irradiation is confirmed by XRD method.
Publisher
Journal
Year
Volume
11
Issue
7
Pages
928-935
Physical description
Dates
published
1 - 7 - 2013
online
17 - 10 - 2013
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-013-0276-3
Identifiers
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