Relaxational study of poly(2-chlorocyclohexyl methacrylate) by thermally stimulated current, dielectric, and dynamic mechanical spectroscopy

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dc.contributor.authorSanchis, MJ
dc.contributor.authorCalleja, RD
dc.contributor.authorGargallo, L
dc.contributor.authorHormazabal, A
dc.contributor.authorRadic, D
dc.date.accessioned2024-01-10T14:21:32Z
dc.date.available2024-01-10T14:21:32Z
dc.date.issued1999
dc.description.abstractA comparative study of the mechanical and dielectric relaxation spectra of poly(2-chlorocyclohexyl methacrylate) (P2CCM) is reported. Two clear relaxational zones are found. The spectra present a moderate subglass gamma absorption, followed in increasing temperature order by a prominent a glass-rubber relaxation process. The last peak is not clearly observed in dielectric measurements due to conductivity effects which overlap the loss permittivity spectrum. Moreover, evidence of remnant mechanical as well as dielectric activity is observed near room temperature. This phenomenon has already been observed in poly(2-chlorocyclohexyl acrylate) (P2CCA). To describe in a suitable way these results, a deconvolution method has been proposed to get information about the relaxational behavior of this polymer. A more detailed analysis about the third relaxation called beta, between alpha and gamma relaxations, has been achieved by using the thermally stimulated depolarization current technique (TSDC). Special attention was devoted to the analysis of the molecular motion that produces dielectric and mechanical activity in glassy P2CCM as well as to link the elementary TSDC to the ac dielectric spectra. A comparative study of P2CCM and P2CCA is also reported.
dc.fechaingreso.objetodigital2024-04-23
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1021/ma981528f
dc.identifier.eissn1520-5835
dc.identifier.issn0024-9297
dc.identifier.urihttps://doi.org/10.1021/ma981528f
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79702
dc.identifier.wosidWOS:000080441900038
dc.information.autorucQuímica;Gargallo L;S/I;98194
dc.information.autorucQuímica;Radic D;S/I;49367
dc.issue.numero10
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final3463
dc.pagina.inicio3457
dc.publisherAMER CHEMICAL SOC
dc.revistaMACROMOLECULES
dc.rightsacceso restringido
dc.subjectPOLY(CYCLOHEXYLMETHYL METHACRYLATE)
dc.subjectSIDE-GROUPS
dc.subjectPOLYMERS
dc.subjectTRANSITION
dc.subjectBEHAVIOR
dc.titleRelaxational study of poly(2-chlorocyclohexyl methacrylate) by thermally stimulated current, dielectric, and dynamic mechanical spectroscopy
dc.typeartículo
dc.volumen32
sipa.codpersvinculados98194
sipa.codpersvinculados49367
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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