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2010 | 15 | 25 - 32
Article title

THE EFFECT OF IONIC CROSSLINKING ON THERMAL PROPERTIES OF HYDROGEL CHITOSAN MEMBRANES

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EN
Abstracts
EN
Ionically crosslinked one‑component chitosan (Ch), two‑component chitosan/sodium alginate (Ch/NaAlg) and chitosan/pentasodium tripolyphosphate (Ch/TPP) membranes as well as three‑component chitosan/sodium alginate/pentasodium tripolyphosphate (Ch/NaAlg/TPP) membranes were prepared. Formation of ionic interactions between Ch and NaAlg and/or TPP was confirmed by FTIR analysis. An effect of a crosslinking process on thermal properties of hydrogel membranes was examined using TG/DTG/DTA and DSC methods. Changes in the number of thermal degradation steps of the studied hydrogel membranes were observed. Considering the temperature at which thermal degradation starts as a criterion of the thermal stability, it was concluded that the thermal stability increases according to the series: Ch/NaAlg ≈ Ch/NaAlg/TPP ≈ Ch/TPP
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Volume
15
Pages
25 - 32
Physical description
Contributors
  • Faculty of Chemistry Nicolaus Copernicus University,
References
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Document Type
article
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bwmeta1.element.psjd-cc09b03e-0719-47cc-903f-d590e8f3f86c
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