Spatial heterogeneity in glassy polystyrene detected by deuteron NMR relaxation

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dc.contributor.authorBöhmer, Roland
dc.contributor.authorDöß, A.
dc.contributor.authorDiezemann, G.
dc.contributor.authorHinze, G.
dc.contributor.authorSillescu, H.
dc.date.accessioned2008-06-12T10:07:37Z
dc.date.available2008-06-12T10:07:37Z
dc.date.issued1999-02-27
dc.description.abstractUsing deuteron NMR, the dynamics of supercooled polystyrene-d3 was investigated near the calorimetric glass transition. At these temperatures non-exponential spin lattice relaxation is found, indicating the presence of spatial heterogeneity. With increasing temperature, structural relaxation becomes fast enough to average efficiently over different spatial environments, leading to exponential magnetization decays. A qualitative comparison with toluene as a representative of a low molecular weight glass former is carried out. Indications are found that in polystyrene the observed averaging process is more effective at Tg than it is in toluene.en
dc.identifier.citationDöß, A.; Hinze, G.; Diezemann, G.; Böhmer, R.; Sillescu, H: Spatial heterogeneity in glassy polystyrene detected by deuteron NMR relaxation. In: Acta Polymerica Nr. 1, Jg. 49(1998), S. 56-58, doi: 10.1002/(SICI)1521-4044(199801)49:1<56::AID-APOL56>3.0.CO;2-7.de
dc.identifier.urihttp://hdl.handle.net/2003/25526
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3393
dc.identifier.urlhttp://dx.doi.org/10.1002/(SICI)1521-4044(199801)49:1<56::AID-APOL56>3.0.CO;2-7
dc.language.isoende
dc.publisherWiley-VCHde
dc.rights© 1999 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germanyen
dc.subject.ddc530
dc.titleSpatial heterogeneity in glassy polystyrene detected by deuteron NMR relaxationen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted

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