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

• Authors: Magdalena Gierszewska-Drużyńska , Jadwiga Ostrowska-Czubenko
• Languages of publication: 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

Keywords

EN

DSC; TG/DTG; chitosan; crosslinking; hydrogel; thermal stability

• Publisher: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
• Journal: Progress on Chemistry and Application of Chitin and its Derivatives
• Year: 2010
• Volume: 15
• Pages: 25 - 32

Contributors

author

Magdalena Gierszewska-Drużyńska

• Faculty of Chemistry, Nicolaus Copernicus University,

author

Jadwiga Ostrowska-Czubenko

• Faculty of Chemistry Nicolaus Copernicus University,

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• Document Type: article