Synthesis, characterization and properties of poly(propylene-1-octene)/graphite nanosheet nanocomposites obtained by in situ polymerization
Author
dc.contributor.author
Milani, Marceo A.
Author
dc.contributor.author
González, Darío
Author
dc.contributor.author
Quijada Abarca, Juan
Author
dc.contributor.author
Benavente, Rosario
Author
dc.contributor.author
Arranz-Andrés, Javier
Author
dc.contributor.author
Galland, Griselda B.
Admission date
dc.date.accessioned
2015-08-04T18:39:26Z
Available date
dc.date.available
2015-08-04T18:39:26Z
Publication date
dc.date.issued
2015
Cita de ítem
dc.identifier.citation
Polymer 65 (2015) 134e142
en_US
Identifier
dc.identifier.issn
0032-3861
Identifier
dc.identifier.other
DOI: 10.1016/j.polymer.2015.03.069
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/132351
General note
dc.description
Artículo de publicación ISI
en_US
Abstract
dc.description.abstract
Poly(propylene-1-octene)/graphite nanosheet (PPC8/GNS) nanocomposites with different comonomer
and graphite nanosheet (GNS) contents were synthesized by in situ polymerization using metallocene
catalyst. There was a significant increase in the crystallization temperature of all the nanocomposites.
Isothermal crystallization studies by optical microscopy confirmed that the GNSs act as nucleating agent
increasing the crystallization rate in the nanocomposites. Transmission electron micrographs showed a
good dispersion of the nanoparticles. Mechanical properties confirm the reinforcing effect that the
nanoparticles confer to the polymer, especially increasing the modulus. Impedance measurements
proved that the conductivity of the nanocomposites increase up to 11 orders of magnitude compared to
neat polymers. The main novelty of this work is the control of the nanocomposite properties through the
variation of the comonomer and the graphite nanosheets contents.
en_US
Patrocinador
dc.description.sponsorship
CNPq
CAPES
FAPERG
Department of the Navy Grant by Office of Naval Research Global
N62909-11-1-7069
PROYECTO FONDECYT
1130446
MINECO
CYTED-311RT0417
MAT2013-47972-C2-1-P
MAT2010-19883