@Article{MontagnaMoMaPaLeRe:2017:EfGrNa,
author = "Montagna, Larissa Stieven and Montanheiro, Tha{\'{\i}}s Larissa
do Amaral and Machado, Jo{\~a}o Paulo Barros and Passador,
F{\'a}bio Roberto and Lemes, Ana Paula and Rezende, Mirabel
Cerqueira",
affiliation = "{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and
{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal
de S{\~a}o Paulo (UNIFESP)} and {Universidade Federal de S{\~a}o
Paulo (UNIFESP)} and {Universidade Federal de S{\~a}o Paulo
(UNIFESP)}",
title = "Effect of graphite nanosheets on properties of
poly(3-hydroxybutyrate-co-3-hydroxyvalerate)",
journal = "International Journal of Polymer Science",
year = "2017",
volume = "2017",
abstract = "The influence of different contents, 0.25, 0.50, and 1.00 wt%, of
graphite nanosheets (GNS) on the properties of
poly(3-hydroxybutyrate- co-3-hydroxyvalerate) (PHBV)
nanocomposites obtained by solution casting method has been
studied. GNS were prepared by three steps: intercalation (chemical
exfoliation), expansion (thermal treatment), and the GNS
obtainment (physical treatment by ultrasonic exfoliation). X-ray
diffraction (XRD), Raman spectroscopy, and field emission
gun-scanning electron microscopy (FE-SEM) showed that the
physical, chemical, and thermal treatments preserved the graphite
sheets structure. XRD and Raman results also showed that GNS were
dispersed in the PHBV matrix. The degree of crystallinity (Xc) of
the nanocomposites did not change when the graphite nanosheets
were added. However, the GNS acted as nucleation agent for
crystallization; that is, in the second heating the samples
containing GNS showed two melting peaks. The addition the GNS did
not change the thermal stability of the PHBV.",
doi = "10.1155/2017/9316761",
url = "http://dx.doi.org/10.1155/2017/9316761",
issn = "1687-9422",
language = "en",
targetfile = "montagna_effect.pdf",
urlaccessdate = "27 abr. 2024"
}