Study of PVA thermal destruction by means of IR and Raman spectroscopy

Study of PVA thermal destruction by means of IR and Raman spectroscopy

Raman and IR spectroscopy were used to examine polyvinyl alcohol (PVA) thermally treated in air or vacuum. It was found that after several hours of treatment in air at 470 K bands in Raman spectrum disappear. After vacuum treatment some bands disappear and other become stronger, and slightly change...

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Veröffentlicht in:Physics of the solid state 2010-10, Vol.52 (10), p.2203-2206
Hauptverfasser: Prosanov, I. Yu, Matvienko, A. A.
Format: Artikel
Sprache:eng
Schlagworte:
Physics
Physics and Astronomy
Polymers
Polymers and Liquid Crystals
Raman spectroscopy
Solid State Physics
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Zusammenfassung:Raman and IR spectroscopy were used to examine polyvinyl alcohol (PVA) thermally treated in air or vacuum. It was found that after several hours of treatment in air at 470 K bands in Raman spectrum disappear. After vacuum treatment some bands disappear and other become stronger, and slightly change their positions. Such a phenomenon is attributed to the increase of molecular polarizability along polymer chain caused by conjugation.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783410100318