FTIR Study of the Thermal Degradation of poly(vinyl alcohol)

Kluwer Academic Publishers
Publication Type:
Journal Article
Journal of Thermal Analysis and Calorimetry, 2001, 64 (2), pp. 501 - 508
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The degradation of poly(vinyl alcohol) was investigated using TG analysis and Fourier transforminfrared spectroscopy to determine the effect of atmosphere on the process of degradation. Inthe spectra, four vibrational modes were identified that characterised the major steps of thedegradation process. These were the O H, C H, C=O and C=C stretching modes. Themechanism observed for degradation in an inert atmosphere was in accordance with theaccepted mechanism of elimination followed by pyrolisation. Evidence of conjugatedpolyenes, however, was not observed. For the air atmosphere, oxidation in both steps of thedegradation process was observed.
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