Preparation and Characterization of Poly(ethylene glycol) Cross-Linked Chitosan Films
| Autor: | Yoshio Inoue, Weihua Kai, Hiroki Kiuchi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Materials science
Polymers and Plastics technology industry and agriculture Chemical modification macromolecular substances General Chemistry equipment and supplies Surfaces Coatings and Films carbohydrates (lipids) Chitosan Crosslinked chitosan chemistry.chemical_compound chemistry Chemical engineering Polymer chemistry PEG ratio Materials Chemistry medicine Thermal stability Elongation Swelling medicine.symptom Ethylene glycol |
| Zdroj: | Journal of Applied Polymer Science. 107(No. 6):3823-3830 |
| Popis: | Poly(ethylene glycol) (PEG) crosslinked chitosan films with various PEG to chitosan ratio and PEG molecular weight were successfully prepared via the epoxy-amine reaction between chitosan and PEG-epoxy. The thermal and mechanical properties and swelling behavior were studied for the PEG crosslinked chitosan films. The mechanical strength of chitosan films were greatly enforced by the introduction of PEG-epoxy, achieving an elongation of about 80%. It was found that the crosslinked chitosan films form hydrogel in water, achieving a swelling ratio higher than 20 times of original weight. The swelling behavior of chitosan films relied greatly on the molecular weight of the crosslinker PEG-epoxy and the weight percent of PEG-epoxy. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2008 |
| Databáze: | OpenAIRE |
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