Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/15866
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dc.contributor.authorRizos, A. K.en
dc.contributor.authorFloudas, G.en
dc.contributor.authorBrown, W.en
dc.date.accessioned2015-11-24T18:26:17Z-
dc.date.available2015-11-24T18:26:17Z-
dc.identifier.issn0022-3093-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/15866-
dc.rightsDefault Licence-
dc.titleLocal and global motions in concentrated solutions of poly(methyl methacrylate)/bis(2-ethylhexyl phthalate)en
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryhttp://dx.doi.org/10.1016/0022-3093(94)90579-7-
heal.identifier.secondaryhttp://www.sciencedirect.com/science/article/pii/0022309394905797-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.publicationDate1994-
heal.abstractPhoton correlation spectra (PCS) of the polarized and depolarized component of the scattered light have been recorded in concentrated solutions of low molecular weight poly(methylmethacrylate) (PMMA) in bis(2 ethylhexyl phthalate) (DOP), in the temperature range 250 360 K. At high temperatures, T, above, the glass transition temperature, Tng, PCS probes the concentration fluctuations, whereas at lower T the faster density fluctuations also appear in the same time window. Near Tg, the PCS in the depolarized mode detects orientation fluctuations in the mixture that exhibit very broad distributions of relaxation times (βKWW ? 0.2). The results are described in terms of the Kohlrausch-Williams-Watts (KWW) relaxation function and discussed in terms of the coupling scheme of relaxation.en
heal.journalNameJournal of Non-Crystalline Solidsen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) - ΦΥΣ



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