Radiative defluorination of poly (vinylidene fluoride) under soft X-ray radiation

The rates of poly (vinylidene fluoride) (PVDF) degradation under synchrotron (SR) and conventional X-ray radiation have been measured and compared. NEXAFS spectra of fluorine show significant changes in their shape and intensity with elevation of radiation dose (or duration of SR exposure). Non-mono...

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Published inRadiation physics and chemistry (Oxford, England : 1993) Vol. 75; no. 11; pp. 2024 - 2028
Main Authors Chebotaryov, S.S., Baitinger, E.M., Volegov, A.A., Margamov, I.G., Gribov, I.V., Moskvina, N.A., Kuznetsov, V.L., Evsyukov, S.E., Pesin, L.A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.11.2006
Subjects
Dehydrofluorination
NEXAFS
PVDF
XPS
61.10.Ht
NEXAFS
Dehydrofluorination
XPS
61.41.+e
82.80.Pv
PVDF
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Summary:The rates of poly (vinylidene fluoride) (PVDF) degradation under synchrotron (SR) and conventional X-ray radiation have been measured and compared. NEXAFS spectra of fluorine show significant changes in their shape and intensity with elevation of radiation dose (or duration of SR exposure). Non-monochromatic AlK α radiation and the flow of secondary electrons accompanying it also cause surface degradation of PVDF. XPS allows one to measure relative content of fluorine by three ways: via relative intensities of F2s/C1s, F1s/C1s, spectra and using the features arising due to of C1s peaks in CF 2 and CF groups.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2005.12.051