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Effect of stretching on the sub-Tgphenylene-ring dynamics of polycarbonate by neutron scattering

descriptionPublicationkeyboard_double_arrow_right Article 12 Aug 2008 Spain English Publisher:American Physical Society (APS)Journal:Physical Review E, volume 78 (issn: 1539-3755, eissn: 1550-2376,

Authors: Arantxa Arbe; Juan Colmenero; Juan Colmenero; Juan Colmenero; Silvia Arrese-Igor; Olatz Mitxelena; Bernhard Frick; +2 Authors

doi: 10.1103/physreve.78.021801

pmid: 18850857

handle: 10261/7420

Effect of stretching on the sub-Tgphenylene-ring dynamics of polycarbonate by neutron scattering

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Abstract

We 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 gamma relaxation by dielectric spectroscopy.

Country

Spain

Related Organizations

Spanish National Research Council
Spain
Donostia International Physics Center
Spain
University of the Basque Country
Spain
Institut Laue-Langevin
France
Center for Materials Physics
Spain

Keywords

Birefringence, Spectral line intensity, Organic compounds, Dielectric relaxation, X-ray scattering, Vibrational modes, Neutron diffraction

21 Research products, page 1 of 3

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