Dielectric relaxation behaviour of poly(cyclobutyl methacrylate)s

dc.creatorDiaz Calleja, R
dc.creatorGarcia Bernabe, A
dc.creatorSanchez Martinez, E
dc.creatorHormazabal, A
dc.creatorGargallo, L
dc.creatorRadic, D
dc.date.accessioned2024-01-10T12:38:21Z
dc.date.accessioned2024-05-02T17:41:07Z
dc.date.available2024-01-10T12:38:21Z
dc.date.available2024-05-02T17:41:07Z
dc.date.created2024-01-10T12:38:21Z
dc.date.issued2002
dc.identifier10.1002/pi.1084
dc.identifier1097-0126
dc.identifier0959-8103
dc.identifierhttps://doi.org/10.1002/pi.1084
dc.identifierhttps://repositorio.uc.cl/handle/11534/77031
dc.identifierWOS:000180406100023
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9268780
dc.description.abstractDielectric behaviour of two poly(methacrylate)s with cyclobutyl groups in the side-chains has been studied. This investigation was performed by determining the dielectric permittivity and loss in terms of frequency and temperature for poly(cyclobutyl. methacrylate) (PCBuM) and poly(cyclobutylmethyl methacrylate) (PCBuMM). Dynamic dielectric measurements show sub-glass relaxations, probably due to motions in the lateral chain, including the cyclobutyl ring. The effect of the insertion of a flexible spacer group into the side-chain is also analyzed. The alpha relaxations were analyzed in terms of the Havriliak-Negami equation and the free volume theory tested according to the Vogel-Fulcher-Tamman-Hesse equation. The conductive and interfacial phenomena were studied by hopping and MacDonald-Coelho models. (C) 2002 Society of Chemical Industry.
dc.languageen
dc.publisherWILEY
dc.rightsacceso restringido
dc.subjectdielectric relaxation
dc.subjectpoly(cyclobutyl methacrylate)
dc.subjectpoly(cyclobutylmethyl methacrylate)
dc.subjectconductivity effects
dc.subjectsubglass relaxation
dc.subjectconformational versatility
dc.subjectVISCOSITY
dc.titleDielectric relaxation behaviour of poly(cyclobutyl methacrylate)s
dc.typeartículo


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