Preparation and characterization of films based on crosslinked blends of gum acacia, polyvinylalcohol, and polyvinylpyrrolidone-iodine complex
| Autor: | C. K. V. Zainul Abid, Nazim Hasan, Syed Ishraque Ahmad, Nasreen Mazumdar |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Materials science food.ingredient Polymers and Plastics biology Polyvinylpyrrolidone General Chemistry Polymer biology.organism_classification Surfaces Coatings and Films chemistry.chemical_compound food Chemical engineering chemistry Gum acacia Polymer chemistry Materials Chemistry medicine Gum arabic Glutaraldehyde Polymer blend Fourier transform infrared spectroscopy medicine.drug |
| Zdroj: | Journal of Applied Polymer Science. 109:775-781 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/app.28140 |
| Popis: | In an attempt to develop iodine-release systems based on polymeric blend for biomedical applica- tions, our research group prepared blends of gum acacia (GA), polyvinylalcohol (PVA), and polyvinylpyrrolidone- iodine (PVP-I) complex. The blends of GA/PVA and GA/ PVA/PVP-I prepared from the aqueous solutions of the polymers were crosslinked with glutaraldehyde to increase the water resistance of the films and to improve their thermal and mechanical properties. The crosslinked GA/PVA and GA/PVA/PVP-I blend films were charac- terized by FTIR spectroscopy, DSC, and TGA. The swel- ling behavior of the prepared blends was investigated and crosslinked GA/PVA blend films were found to be pH sensitive. The properties of PVP-I containing blends differed from those prepared without it probably due to the formation of an intermolecular interaction between PVP-I and the hydroxy-polymers. The results indicated that after crosslinking the blends showed improvement in water resistance, thermal, and mechanical properties. 2008 Wiley Periodicals, Inc. J Appl Polym Sci 109: 775-781, 2008 |
| Databáze: | OpenAIRE |
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