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Preparation of Chitosan Based Scaffolds Using Supercritical Carbon Dioxide

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JournalPOLYMER NETWORKS: SYNTHESIS, PROPERTIES, THEORY AND APPLICATIONS
DatePublished - Feb 2009
Issue number1
Volume277
Number of pages7
Pages (from-to)36-42
Original languageEnglish

Abstract

A novel chitosan-formaldehyde porous derivative (scaffolds) was prepared by reaction of 85% deacetylated chitosan with 37% aq. formaldehyde using supercritical carbon dioxide (sc. CO2). Prior to reaction, the chitosan hydrogel was prepared in 1% aq. acetic acid (AcOH) and formaldehyde. The prepared hydrogel was subjected to solvent exchange. The identity of the Schiff base was confirmed by Fourier transform infrared spectroscopy (FTIR). The chitosan-derivative was evaluated by thermal analysis, scanning electron microscopy, and porosimetry analysis. Overall, the sc. CO2 assisted chitosan derivative opens new perspectives as biomedical material.

    Research areas

  • chitosan, formaldehyde, FTIR, hydrogel, sc. CO2, TEMPERATURE, POLYMER, ACID), CO2

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