dc.creatorATVARS, TDZ
dc.creatorSABADINI, E
dc.creatorMARTINSFRANCHETTI, SM
dc.date1993
dc.dateSEP
dc.date2014-12-16T11:36:45Z
dc.date2015-11-26T17:26:42Z
dc.date2014-12-16T11:36:45Z
dc.date2015-11-26T17:26:42Z
dc.date.accessioned2018-03-29T00:13:51Z
dc.date.available2018-03-29T00:13:51Z
dc.identifierEuropean Polymer Journal. Pergamon-elsevier Science Ltd, v. 29, n. 9, n. 1259, n. 1264, 1993.
dc.identifier0014-3057
dc.identifierWOS:A1993LQ19800017
dc.identifier10.1016/0014-3057(93)90159-D
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75303
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/75303
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75303
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1284608
dc.descriptionSecondary gamma and beta relaxations in polyethylene have been studied by photoluminescence of molecular probes dispersed in the polymer. The temperature of the gamma relaxation of low density polyethylene has been determined as -130-degrees-C by the phosphorescence emission of benzophenone. The temperature of the beta relaxation of the same polymer has been found to be -40-degrees-C by the fluorescence emission of anthracene. From the differences in the quenching processes for the phosphorescence and fluorescence of the molecular probes, it should be possible to discuss the mechanisms of both the gamma and beta relaxations depending on the size of the macromolecular segments involved in each process
dc.description29
dc.description9
dc.description1259
dc.description1264
dc.languageen
dc.publisherPergamon-elsevier Science Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationEuropean Polymer Journal
dc.relationEur. Polym. J.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectLow-density Polyethylene
dc.subjectAlpha-relaxations
dc.subjectBeta-relaxations
dc.subjectDopant Rates
dc.subjectTransition
dc.subjectDiffusion
dc.subjectPolymers
dc.subjectGamma
dc.subjectProbe
dc.subjectFilms
dc.titleSTUDY OF SECONDARY RELAXATIONS OF POLYETHYLENE BY PHOTOLUMINESCENCE TECHNIQUE
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución