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dc.contributor.authorArrese-Igor, Silvia-
dc.contributor.authorMitxelena, Olatz-
dc.contributor.authorArbe, Arantxa-
dc.contributor.authorAlegría, Ángel-
dc.contributor.authorColmenero de León, Juan-
dc.contributor.authorFrick, Bernhard-
dc.identifier.citationPhys. Rev. E 78, 021801 (2008).en_US
dc.description8 pages.-- PACS nrs.: 36.20.Ey, 28.20.Cz.en_US
dc.description.abstractWe have investigated the effect of cold drawing on the motion of phenylene rings in bisphenol-A polycarbonate by neutron scattering. The intensity scattered by isotropic and stretched polycarbonate is different, the quasielastic broadening being larger for the isotropic sample. This difference can be well accounted for by considering that preferentially oriented rings in the stretched polymer have their motion sterically hindered. The extent of the effect of stretching on the phenylene-ring motion obtained from this neutron-scattering investigation is in good agreement with that obtained when studying the effect of cold drawing on the γ relaxation by dielectric spectroscopy.en_US
dc.description.sponsorshipThis research project has been supported by the European Commission NoE SoftComp, Contract No. NMP3-CT-2004-502235, Project Nos. MAT2007-63681 and IT-436-07 (G.V.), the Spanish Ministerio de Educación y Ciencia (Grant No. CSD2006-53), the Consejo Superior de Investigaciones Científicas, and the Donostia International Physics Center. O.M. also acknowledges grants from the Basque Government and the University of the Basque Country.en_US
dc.format.extent392084 bytes-
dc.publisherAmerican Physical Societyen_US
dc.subjectDielectric relaxationen_US
dc.subjectNeutron diffractionen_US
dc.subjectOrganic compoundsen_US
dc.subjectSpectral line intensityen_US
dc.subjectVibrational modesen_US
dc.subjectX-ray scatteringen_US
dc.titleEffect of stretching on the sub-Tg phenylene-ring dynamics of polycarbonate by neutron scatteringen_US
dc.description.peerreviewedPeer revieweden_US
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