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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Giannakas, Aris Grigoriadi, Kalouda Leontiou, Areti Barkoula, Nektaria-Marianthi Ladavos, Athanasios |
| Description | Author Affiliation: Giannakas A ( Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece. Electronic address: agiannak@cc.uoi.gr.); Grigoriadi K ( Department of Materials Engineering, University of Ioannina, Ioannina 45110, Greece. Electronic address: kalouda.grigoriadi@gmail.com.); Leontiou A ( Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece. Electronic address: aleontiu@cc.uoi.gr.); Barkoula NM ( Department of Materials Engineering, University of Ioannina, Ioannina 45110, Greece. Electronic address: nbarkoul@cc.uoi.gr.); Ladavos A ( Department of Business Administration of Food and Agricultural Enterprises, University of Patras, Agrinio 30100, Greece. Electronic address: alantavo@cc.uoi.gr.) |
| Abstract | In the current study the effect of dilution of chitosan acetate solution and of the use of a reflux-solution method on the morphology, the mechanical and water barrier properties of chitosan based nanocomposites is being investigated. Two series of nanocomposite films from two chitosan acetate solutions with 2 w/v% and 1 w/v% in chitosan were prepared, with 3, 5 and 10 wt% Na-montmorillonite (NaMMT) and/or 30 wt% glycerol. Intercalation of NaMMT was more effective in films based on 2 w/v% solutions which presented decreased hydrated crystallinity. Upon NaMMT addition an enhancement was found in stiffness and strength (up to 100%) and a remarkable decrease in the elongation at break (up to 75%) and water vapor permeability (WVP) (up to 65%). This enhancement was less pronounced in 1 w/v% systems. Addition of glycerol had a negative effect on the stiffness, strength and WVP, and a positive effect on the elongation at break and the absorbed water. Compared with the conventional solution cast method, the reflux treatment led to a significant improvement of the tested properties of nanocomposite films. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Journal | Carbohydrate Polymers |
| Volume Number | 108 |
| e-ISSN | 18791344 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-08-08 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Chitosan Chemistry Nanocomposites Bentonite Glycerol Membranes, Artificial Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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