Electrical properties of poly(monomethyl itaconate)/few-layer functionalized graphene oxide/lithium ion nanocomposites
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2020Metadata
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Cuenca Bracamonte, Quimberly
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Electrical properties of poly(monomethyl itaconate)/few-layer functionalized graphene oxide/lithium ion nanocomposites
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Abstract
Poly(monomethyl itaconate) is outstanding because it is a glassy and dielectric polymer obtained from sustainable feedstock. Consequently, the study of the properties of its nanocomposites has gained importance. Herein, the electrical properties of nanocomposites based on poly(monomethyl itaconate) and functionalized few-layer graphene oxide (FGO) in the presence and absence of lithium ions (Li+) are studied. Not only did the electrical conductivities of the nanocomposites present values as high as 10(-5) Scm(-1), but also the dielectric permittivity of nanocomposites with (FGO) content lower than the percolation threshold was twice that of the pristine polymer, without presenting a drastic increase of the loss tangent. By contrast, nanocomposites containing Li+ ions presented significant increases of the permittivity with concomitant increases of the loss tangent. Moreover, it was determined that the presence of Li+ ions influenced the charge transport in the composites because of its ionic nature.
Patrocinador
ANID (National Research and Development Agency, Chile) through grant FONDECYT
1191566
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
CONICYT FONDECYT
11200437
ANID
Spanish Government
RYC-2017-22837
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Artículo de publicación ISI Artículo de publicación SCOPUS
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Polymers 2020, 12, 2673
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