Reordering of polystyrene gel due to multiple swelling in organic vapor fast transient fluorescence technique study

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dc.authorid0000-0003-4440-1896
dc.authorid0000-0002-0082-8209
dc.contributor.authorErdoğan, Matemen_US
dc.contributor.authorPekcan, Mehmet Önderen_US
dc.date.accessioned2015-01-15T23:00:34Z
dc.date.available2015-01-15T23:00:34Z
dc.date.issued2006-07-31
dc.departmentIşık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.departmentIşık University, Faculty of Arts and Sciences, Department of Physicsen_US
dc.description.abstractReordering of disc-shaped polystyrene (PS) gels due to multiple swelling, under organic vapor was studied by using Fast Transient Fluorescence (FTRF) technique. Disc-sbaped polystyrene gels were prepared by free radical copolymerization (FRC) of styrene (S) with ethylene glycol dimethacrylate (EGDM) as a crosslinker. Pyrene (P) was introduced as a fluorescence probe during polymerization. Swelling experiments were performed by using P doped PS gels under chloroform vapor. After each swelling step, gels were left to dry in an oven at 30 degrees C for consecutive reswelling experiments. Decay curves of P were measured and pyrene lifetimes, tau, were determined. It was observed that tau values decreased as swelling recycles were repeated. It was observed that after the fifth swelling step, two different regimes appeared in the swelling processes in PS gels. Swelling time constant, tau(c), and cooperative diffusion coefficients, D-c were determined by using Li-Tanaka equation for each swelling step in both regimes. It was observed that D-c values decreased up to tenth swelling step and then remained unchanged in both regimes.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationErdoǧan, M. & Pekcan, M. Ö. (2006). Reordering of polystyrene gel due to multiple swelling in organic vapor. fast transient fluorescence technique study. Journal of Photochemistry and Photobiology A: Chemistry, 181(2-3), 394-400. doi:10.1016/j.jphotochem.2005.12.025en_US
dc.identifier.doi10.1016/j.jphotochem.2005.12.025
dc.identifier.endpage400
dc.identifier.issn1010-6030
dc.identifier.issn1873-2666
dc.identifier.issue2-3
dc.identifier.scopus2-s2.0-33745269826
dc.identifier.scopusqualityQ2
dc.identifier.startpage394
dc.identifier.urihttps://hdl.handle.net/11729/218
dc.identifier.urihttp://dx.doi.org/10.1016/j.jphotochem.2005.12.025
dc.identifier.volume181
dc.identifier.wosWOS:000238963700035
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorPekcan, Mehmet Önderen_US
dc.institutionauthorid0000-0002-0082-8209
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherElsevier Science SAen_US
dc.relation.ispartofJournal Of Photochemistry And Photobiology A-Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDiffusionen_US
dc.subjectFast transient fluorescenceen_US
dc.subjectGelen_US
dc.subjectHydrogelsen_US
dc.subjectKineticsen_US
dc.subjectLighten_US
dc.subjectPhase transitionen_US
dc.subjectPolyacrylatesen_US
dc.subjectReorderingen_US
dc.subjectSwellingen_US
dc.titleReordering of polystyrene gel due to multiple swelling in organic vapor fast transient fluorescence technique studyen_US
dc.typeArticleen_US
dspace.entity.typePublication

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