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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chaker, Achraf Boufi, Sami |
| Description | Country affiliation: Tunisia Author Affiliation: Chaker A ( University of Sfax, Faculty of Science of Sfax, LMSE, BP 1171-3000 Sfax, Tunisia.); Boufi S ( University of Sfax, Faculty of Science of Sfax, LMSE, BP 1171-3000 Sfax, Tunisia. Electronic address: Sami.Boufi@fss.rnu.tn.) |
| Abstract | Cationic nanofibrillar cellulose (C-NFC) has been prepared via a high pressure homogenization using quaternized cellulose fibers with glycidyltrimethylammonium chloride. It has been shown that the quaternization of dried softwood pulp facilitated the defibrillation processes and prevented clogging of the homogenizer. The effects of the trimethylammonium chloride content on the fibrillation yield, the transparency degree of the gel, the rheological behavior of the NFC suspension and their electrokinetic properties were investigated. AFM observation showed that the NFC suspension consisted of individualized cellulose I nanofibrils 4-5nm in width and length in the micronic scale. In addition to their strong reinforcing potential, the inclusion of C-NFC into a polymer matrix was shown to efficiently enhance the antibacterial activity. The reinforcing potential of C-NFC, studied by dynamic mechanical analysis (DMA), was compared to anionic NFC and the difference was explained in terms of the nanofibrils capacities to build up a strong networks held by hydrogen bonding. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 131 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-10-20 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Anti-bacterial Agents Pharmacology Cellulose Nanofibers Chemistry Bacteria Drug Effects Carbon-13 Magnetic Resonance Spectroscopy Cations Colloids Elastic Modulus Hydrogen-ion Concentration Microbial Sensitivity Tests Microscopy, Atomic Force Nanocomposites Ultrastructure Paper Quaternary Ammonium Compounds Static Electricity Viscosity Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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