| Titre : |
Nanosilver/hyperbranched polyester (HBPE): synthesis, characterization, and antibacterial activity |
| Type de document : |
texte imprimé |
| Auteurs : |
C. Kavitha, Auteur ; K. Priya Dasan, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 669-678 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acide polyacrylique
Antibactériens
Antimicrobiens
Argent
Caractérisation
Nanoparticules
Polyesters
Polymères -- Synthèse
Polymères ramifiés
Solubilité
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
HBPE of different generations were synthesized using 4-hydroxybenzoic acid and 2,2?,2?-nitrilotriethanol via the A2 + B3 method. The reaction was carried out in a dry nitrogen atmosphere using p-toluene sulfonic acid (p-TSA) as an acid catalyst. The chosen molar ratios of 2,2?,2?-nitrilotriethanol to 4-hydroxybenzoic acid were 1:3, 1:6, and 1:21 for the G1, G2, and G5 generations, respectively. The G5 stage of HBPE was further coupled with acrylic acid to modify the terminal hydroxyl groups. The resulting products were analyzed using 1H NMR, 13C NMR, FTIR spectroscopy, and GPC. Silver nanoparticles were prepared by a reductive technique using HBPEs of the G5 generation as the matrix. XRD and TEM analysis indicated the formation of highly spherical and stable nanosilver in the HBPE. The antibacterial activity of the nanosilver/HBPE was evaluated against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) bacteria. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Characterization - Synthesis of hyperbranched polyester and end group modification - Viscosity measurement - Preparation of silver nanoparticles
- ANTIBACTERIAL ACTIVITY : Preparation of culture media for incubation of microorganisms - Antimicrobial activity
- RESULTS AND DISCUSSION : FTIR study - NMR analysis - Characterization of silver nanoparticles - Antimicrobial activity of nanosilver/HBPE |
| DOI : |
10.1007/s11998-013-9499-x |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9499-x.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19801 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 5 (09/2013) . - p. 669-678
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Nanosilver/hyperbranched polyester (HBPE): synthesis, characterization, and antibacterial activity in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
