The use of synchrotron X-ray scattering coupled with in situ mechanical testing for studying deformation and structural change in isotactic polypropylene

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dc.contributor.authorDavies, R. J.en
dc.contributor.authorZafeiropoulos, N. E.en
dc.contributor.authorSchneider, K.en
dc.contributor.authorRoth, S. V.en
dc.contributor.authorBurghammer, M.en
dc.contributor.authorRiekel, C.en
dc.contributor.authorKotek, J. C.en
dc.contributor.authorStamm, M.en
dc.date.accessioned2015-11-24T17:31:28Z
dc.date.available2015-11-24T17:31:28Z
dc.identifier.issn0303-402X-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13589
dc.rightsDefault Licence-
dc.subjectpolypropyleneen
dc.subjectbeta ippen
dc.subjectsynchrotronen
dc.subjectwaxsen
dc.subjectdeformationen
dc.subjectbeta-polypropyleneen
dc.subjectphase-transformationen
dc.subjectfracture-toughnessen
dc.subjectalpha-phaseen
dc.subjectcrystallizationen
dc.subjectbehavioren
dc.subjectformen
dc.subjectmorphologyen
dc.subjectradiationen
dc.subjectshearen
dc.titleThe use of synchrotron X-ray scattering coupled with in situ mechanical testing for studying deformation and structural change in isotactic polypropyleneen
heal.abstractThe mechanical behaviour of semi-crystalline polymers is greatly influenced by the properties of the crystalline and the amorphous phases. As a result this topic has been the subject of extensive research. However, to date, a comprehensive relationship between the structure and mechanical properties for semi-crystalline polymers has yet to be established. This present study concerns the commissioning of a novel method for in situ data collection during the deformation of polymers. This involves the combination of three different techniques into a single experiment, namely tensile testing, synchrotron radiation wide angle X-ray scattering, and optical microscopy. For this current investigation, three isotactic polypropylene samples have been studied, produced using different thermal treatments. This enables the influence of thermal treatment on the mechanical properties and crystallographic structure to be assessed. The results indicate that tensile properties are influenced by thermal treatment via the relative fraction of beta-phase material in the sample. As the temperature increases at which thermal treatment takes place, iPP ductility decreases due to the greater rigidity of the increasing alpha-phase content. Differences in crystal strain between the different iPP crystal phases are also observed although the reasons for such differences remain unclear.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1007/s00396-004-1118-z-
heal.identifier.secondary<Go to ISI>://000221731900010-
heal.journalNameColloid and Polymer Scienceen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2004-
heal.publisherSpringer-Verlagen
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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