1 April 2003 Changes in IR spectra of polysaccharides induced by CW CO2-laser radiation
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By IR spectroscopy methods the structural changes of high molecular polymers irradiated by CW CO2-laser radiation was investigated. Some changes in the structural sensitive regions at 1250 - 950 and 950 - 850 cm-1 of the IR spectra of the investigated polysaccharides [pullulan (molecular mass of 14500) and microcrystalline cellulose (structural modifications I and II)] were exhibit. These changes indicated that the degree of conformational order of polysaccharide molecules increases under the laser irradiation, while its structural order always decreases as a result of heating by traditional thermal sources.
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Viacheslav A. Dlugunovich, Viacheslav A. Dlugunovich, R. G. Zhbankov, R. G. Zhbankov, Vladimir A. Zhdanovskii, Vladimir A. Zhdanovskii, L. N. Nasennik, L. N. Nasennik, S. A. Puhnarevich, S. A. Puhnarevich, S. P. Firsov, S. P. Firsov, "Changes in IR spectra of polysaccharides induced by CW CO2-laser radiation", Proc. SPIE 5064, Lightmetry 2002: Metrology and Testing Techniques Using Light, (1 April 2003); doi: 10.1117/12.501396; https://doi.org/10.1117/12.501396


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