Synthesis of new poly(itaconate)s containing nitrile groups as high dipolar moment entities for the development of dipolar glass polymers with increased dielectric constant. Thermal and dielectric characterization

Simple item page
dc.contributor.authorBonardd, Sebastian
dc.contributor.authorAlegria, Angel
dc.contributor.authorSaldias, Cesar
dc.contributor.authorLeiva, Angel
dc.contributor.authorKortaberria, Galder
dc.date.accessioned2025-01-23T21:14:29Z
dc.date.available2025-01-23T21:14:29Z
dc.date.issued2019
dc.description.abstractThis work presents the synthesis of new poly(itaconate)s containing one or two nitrile pendant groups through conventional radical polymerization. To the best of our knowledge, this is the first time in which the synthesis of poly(itaconate)s containing nitrile groups is reported in the literature. The effect of nitrile groups on the main properties is analyzed. Polymer structures were confirmed by Fourier transform infrared spectroscopy (FTIR), H-1 and C-13 NMR. Molecular weights were measured by size exclusion chromatography (SEC), while thermal characterization was achieved by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Dielectric properties were measured using broadband dielectric spectroscopy at different temperatures. Polymers with one or two nitrile groups presented dielectric constant values (at 25 degrees C and 1 kHz) of around 7 and 12.5, respectively, with relatively low dielectric losses with values below 0.02. BDS measurements showed notorious sub-glass transitions attributed to the movement of the dipolar groups under the electric field, even below - 100 degrees C, allowing to achieve dielectric constant values above the average for polymers even at extremely low temperatures. Therefore, these materials could be considered as good candidates for energy storage applications.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.eurpolymj.2019.02.013
dc.identifier.eissn1873-1945
dc.identifier.issn0014-3057
dc.identifier.urihttps://doi.org/10.1016/j.eurpolymj.2019.02.013
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101042
dc.identifier.wosidWOS:000467668800003
dc.language.isoen
dc.pagina.final31
dc.pagina.inicio19
dc.revistaEuropean polymer journal
dc.rightsacceso restringido
dc.subjectPolymer dielectrics
dc.subjectDipolar glass polymer
dc.subjectPolyitaconates
dc.subjectDielectric constant
dc.subjectBroadband dielectric spectroscopy
dc.subjectEnergy storage
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleSynthesis of new poly(itaconate)s containing nitrile groups as high dipolar moment entities for the development of dipolar glass polymers with increased dielectric constant. Thermal and dielectric characterization
dc.typeartículo
dc.volumen114
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas