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dc.contributor.authorPekcan, Mehmet Önderen_US
dc.contributor.authorKaya Aktaş, Demeten_US
dc.date.accessioned2015-01-15T23:00:21Z
dc.date.available2015-01-15T23:00:21Z
dc.date.issued2005
dc.identifier.citationPekcan, M. Ö. & Kaya Aktaş, D. (2005). Universal behaviour of glass transition exponents in various polymeric systems. Composite Interfaces, 12(6), 501-521. doi:10.1163/1568554054915192en_US
dc.identifier.issn0927-6440
dc.identifier.otherWOS:000233423200002
dc.identifier.urihttps://hdl.handle.net/11729/189
dc.identifier.urihttp://dx.doi.org/10.1163/1568554054915192
dc.description.abstractThe fast transient fluorescence (FTRF) technique was used to study the critical exponents during glass transition in free-radical cross-linking copolymerization (FCC). Methyl methacrylate (MMA), ethyl methacrylate (EMA) and various combinations of MMA with EMA were used during FCC experiments. Pyrene (Py) was used as a fluorescence probe and its fluorescence lifetimes from its decay traces were measured during glass transition. Changes in the viscosity of the pre-gel solutions due to glass formation dramatically increased the Py fluorescent lifetimes, which were used to study the glass transition of MMA, EMA and their mixtures as a function of time, at various temperatures and monomer concentrations. The results were interpreted in the view of percolation theory. The critical exponents, beta and gamma, were measured near the glass transition point and found to be around 0.37 +/- 0.015 and 1.69 +/- 0.05, respectively, in all systems studied, which are in good agreement with the static percolation results.en_US
dc.language.isoengen_US
dc.publisherVsp Bv, Brill Academic Publishersen_US
dc.relation.isversionof10.1163/1568554054915192
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCross-linking copolymerizationen_US
dc.subjectTransient fluorescence techniqueen_US
dc.subjectSol-gel transitionen_US
dc.subjectMethyl-methacrylateen_US
dc.subjectEnergy-transferen_US
dc.subjectGelationen_US
dc.subjectBulken_US
dc.subjectDivinylbenzeneen_US
dc.subjectMorphologyen_US
dc.subjectColloidsen_US
dc.titleUniversal behaviour of glass transition exponents in various polymeric systemsen_US
dc.typearticleen_US
dc.description.versionPublisher's Versionen_US
dc.relation.journalComposite Interfacesen_US
dc.contributor.departmentIşık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.contributor.departmentIşık University, Faculty of Arts and Sciences, Department of Physicsen_US
dc.contributor.authorID9155
dc.contributor.authorID0000-0002-0082-8209
dc.identifier.volume12
dc.identifier.issue6
dc.identifier.startpage501
dc.identifier.endpage521
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.institutionauthorPekcan, Mehmet Önderen_US


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