Author(s)

Raquel Couto de Azevedo Gonçalves Mota^*, Emerson Oliveira da Silva, Lívia Rodrigues de Menezes

Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.

In this study, poly(vinyl alcohol) (PVA)-based nanocomposites consisting of metallic oxide nanoparticles (TiO₂, ZnO, ZrO₂) were obtained from an aqueous solution of 7% PVA, in order to compare the microstructural, and physical properties of bionanocomposite films reinforced with various loading contents (0.1%, 0.2% and 0.3% w/w). They were evaluated regarding their molecular toughness through Nuclear Magnetic Resonance (NMR), regarding their chemical structural through Fourier Transform Infrared Spectroscopy (FTIR), regarding their crystallinity throught X-ray Diffraction (XRD), and regarding termal properties through Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). The NMR results showed that the smallest concentrations of these oxides have a tendency to disperse better in the polymeric matrix, improving the structural toughness. Besides, changes in the termal resistance of the material were found with the use of TGA and DSC.

Poly(vinyl alcohol), Nanocomposites, Metallic Oxides, Titanium Oxide, Zirconium Oxide, Zinc Oxide

Couto de Azevedo Gonçalves Mota, R. , Oliveira da Silva, E. and Rodrigues de Menezes, L. (2018) Effect of the Addiction of Metal Oxide Nanoparticles on the Physical, Chemical and Thermal Properties of PVA Based Nanocomposites. Materials Sciences and Applications, 9, 473-488. doi: 10.4236/msa.2018.95033.