Photochemical stability of poly(vinyl alcohol) in the presence of collagen |
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Authors: | Alina Sionkowska Anna P?anecka Justyna Koz?owska Joanna Skopińska-Wi?niewska |
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Affiliation: | Faculty of Chemistry, N. Copernicus University, Gagarin 7, 87-100 Torun, Poland |
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Abstract: | The photochemical stability of poly(vinyl alcohol) (PVA) in the presence of 1%, 3% and 5% of collagen has been studied by Fourier Transform Infrared (FTIR) Spectroscopy, UV-vis spectroscopy, and Differential Scanning Calorimetry (DSC). PVA samples containing 1%, 3% and 5% of collagen were irradiated with UV light wavelength λ = 254 nm in air.The results have shown that PVA in the presence of 1%, 3% and 5% of collagen is less stable under UV radiation than pure PVA. A small amount of collagen in PVA enhances photooxidation in the PVA. The amount of crystallinity in PVA containing 1%, 3% and 5% of collagen decreases faster with UV irradiation time than that for pure PVA films. |
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Keywords: | Poly(vinyl alcohol) Collagen UV irradiation Biomaterials |
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