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- Title
The Influence of Artificial Photodegradation on Properties of Poly(3-hydroxybutyrate-<italic>co</italic>-3-hydroxyvalerate)(PHBV)/Graphite Nanosheets (GNS) Nanocomposites.
- Authors
Montagna, Larissa Stieven; Do Amaral Montanheiro, Thaís Larissa; Passador, Fábio Roberto; Lemes, Ana Paula; Rezende, Mirabel Cerqueira
- Abstract
The potential use of poly(3-hydroxybutyrate-<italic>co</italic>-3-hydroxyvalerate)/graphite nanosheets (GNS) as a biodegradable nanocomposite has been explored. PHBV/GNS nanocomposites films were prepared by solution casting at various concentrations of GNS—0.25, 0.50 and 1.00 wt% GNS. The films were exposed to artificial ultraviolet radiation (UV) during 52 h. The effect of GNS on PHBV photodegradation was investigated and compared to neat PHBV film. The artificial photodegradation induced changes in physical (weight loss), chemical carbonyl index by Fourier transform infrared spectroscopy, thermal degree of crystallinity and melting temperature by differential scanning calorimetry and morphological scanning electron microscopy characteristics. Based on the results obtained from aforementioned analyzes it was verified that GNS inhibits the oxidative degradation of PHBV matrix.
- Subjects
PHOTODEGRADATION; POLY(3-hydroxybutyrate) depolymerase; BIODEGRADABLE nanoparticles; FOURIER transform infrared spectroscopy; DIFFERENTIAL scanning calorimetry; CARBON films testing
- Publication
Journal of Polymers & the Environment, 2018, Vol 26, Issue 4, p1511
- ISSN
1566-2543
- Publication type
Article
- DOI
10.1007/s10924-017-1051-0