Abstract
Using IR spectroscopy, elemental analysis, and potentiometric titration, it was confirmed that amidation and cross linking of the polymer take place in heat treatment of chitosan films in the S-form. It is shown that these processes also take place in hardening of films from formic acid solutions of chitosan by vaporization of the solvent at high temperature.
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Zotkin, M.A., Vikhoreva, G.A., Smotrina, T.V. et al. Thermal Modification and Study of the Structure of Chitosan Films. Fibre Chemistry 36, 16–20 (2004). https://doi.org/10.1023/B:FICH.0000025532.80007.49
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DOI: https://doi.org/10.1023/B:FICH.0000025532.80007.49
Keywords
- Polymer
- Spectroscopy
- Heat Treatment
- Chitosan
- Titration