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Front. Mater. | doi: 10.3389/fmats.2018.00011

Fabrication of antibacterial PVA nanocomposite films containing dendritic polymer functionalized multi-walled carbon nanotubes

  • 1National Centre of Scientific Research Demokritos, Greece

A series of Poly(vinyl alcohol) (PVA) nanocomposite films containing quaternized hyperbranched polyethyleneimine (PEI) functionalized multi-walled carbon nanotubes (ox-CNTs@QPEI) are prepared by solvent casting technique. The modified carbon based material exhibits high aqueous solubility, due to the hydrophilic character of the functionalized hyperbranched dendritic polymer. The quaternized PEI successfully wraps around nanotube walls, as polycations provide electrostatic repulsion. Various contents of ox-CNTs@QPEI ranging from 0.05 to 1.0 % w/w were employed to prepare functionalized PVA nanocomposites. The developed films exhibit adequate optical transparency, improved mechanical properties and extremely high antibacterial behavior due to the excellent dispersion of the functionalized carbon nanotubes into the PVA matrix.

Keywords: Poly(vinyl alcohol), carbon-based nanofillers, Nanocomposites, carbon nanotube, Quaternized Hyperbranched Polyethyleneimine, Antibacterial properties.

Received: 03 Dec 2017; Accepted: 13 Feb 2018.

Edited by:

Vasilios Georgakilas, University of Patras, Greece

Reviewed by:

Susanna Bosi, University of Trieste, Italy
Horacio J. Salavagione, Consejo Superior de Investigaciones Científicas (CSIC), Spain
Aristides Bakandritsos, Regional Centre of Advanced Technologies and Materials, Palacky University Olomouc, Czechia  

Copyright: © 2018 SAPALIDIS, Sideratou, Panagiotaki, Sakellis, Kouvelos, Papageorgiou and Katsaros. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Dr. ANDREAS SAPALIDIS, National Centre of Scientific Research Demokritos, Athens, Greece, a.sapalidis@inn.demokritos.gr
Dr. Zili Sideratou, National Centre of Scientific Research Demokritos, Athens, Greece, z.sideratou@inn.demokritos.gr