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Electron and proton irradiation of poly(vinylidene fluoride): characterization by electron paramagnetic resonance

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Title: Electron and proton irradiation of poly(vinylidene fluoride): characterization by electron paramagnetic resonance
Authors: Adem, E.1, Burillo, G.2, Muñoz, E.1, Rickards, J.1 rickards@fisica.unam.mx, Cota, L.3, Avalos-Borja, M.3
Source: Polymer Degradation & Stability. Jul2003, Vol. 81 Issue 1, p75. 5p.
Subjects: Protons, Particles (Nuclear physics), Electron paramagnetic resonance, Radicals (Chemistry), Temperature
Abstract: Films of poly(vinylidene fluoride) (PVDF) were exposed to proton and electron beam irradiation at high doses, from 50 to 5000 kGy. Modifications induced in the samples were determined by electron paramagnetic resonance (EPR). Samples irradiated with electrons and protons showed similar behaviours, with the presence of several types of radicals. The number of radicals produced as a function of dose in the proton case is slightly below that of the electron case, indicating non-linear effects. The evolution of radical density and its decay in the dark and in normal light conditions at room temperature was studied, as well as its decay with increase in temperature. When kept in the dark for up to 180 days, no decay of radicals was observed. [Copyright &y& Elsevier]
Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 9891724
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Electron and proton irradiation of poly(vinylidene fluoride): characterization by electron paramagnetic resonance
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  Data: <searchLink fieldCode="DE" term="%22Protons%22">Protons</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+paramagnetic+resonance%22">Electron paramagnetic resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Radicals+%28Chemistry%29%22">Radicals (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink>
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  Data: Films of poly(vinylidene fluoride) (PVDF) were exposed to proton and electron beam irradiation at high doses, from 50 to 5000 kGy. Modifications induced in the samples were determined by electron paramagnetic resonance (EPR). Samples irradiated with electrons and protons showed similar behaviours, with the presence of several types of radicals. The number of radicals produced as a function of dose in the proton case is slightly below that of the electron case, indicating non-linear effects. The evolution of radical density and its decay in the dark and in normal light conditions at room temperature was studied, as well as its decay with increase in temperature. When kept in the dark for up to 180 days, no decay of radicals was observed. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/S0141-3910(03)00064-8
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        Text: English
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        Type: general
      – SubjectFull: Particles (Nuclear physics)
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      – SubjectFull: Electron paramagnetic resonance
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      – SubjectFull: Temperature
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      – TitleFull: Electron and proton irradiation of poly(vinylidene fluoride): characterization by electron paramagnetic resonance
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              M: 07
              Text: Jul2003
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              Y: 2003
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