Critical Exponents of Photoinitiated Gelation at Different Light Intensities

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dc.contributor.authorDoğruyol, Zekeriya
dc.contributor.authorArsu, Nergis
dc.contributor.authorPekcan, Önder
dc.date.accessioned2019-06-27T08:05:38Z
dc.date.available2019-06-27T08:05:38Z
dc.date.issued2009
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Biyoinformatik ve Genetik Bölümüen_US
dc.description.abstractA photo-differential scanning calorimetric (Photo-DSC) technique was used to study the photoinitiated radical polymerization of a 75% epoxy diacrylate (EA) and 25% tripropyleneglycoldiacrylate (TPGDA) mixture with 2-mercaptothioxanthone (TX-SH) as photoinitiator by using different light intensities. Photopolymerization reactions were carried out under identical conditions of temperature and initiator concentration. It was observed that all conversion curves during gelation at various Might intensities present good sigmoidal behavior as predicted by the percolation model. Observations around the critical time called the glass transition point (t(g)) taken for polymerization to reach the maximum rate (R-pmax) show that the gel fraction exponents beta obeyed the universal percolation picture. On the other hand R-pmax t(g) and final conversion values were found to be dependent on the UV light intensity.en_US]
dc.identifier.citation15
dc.identifier.doi10.1080/00222340902959719en_US
dc.identifier.endpage754
dc.identifier.issn0022-2348en_US
dc.identifier.issn1525-609Xen_US
dc.identifier.issn0022-2348
dc.identifier.issn1525-609X
dc.identifier.issue4
dc.identifier.scopus2-s2.0-70449597814en_US
dc.identifier.scopusqualityQ3
dc.identifier.startpage745en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/1098
dc.identifier.urihttps://doi.org/10.1080/00222340902959719
dc.identifier.volume48en_US
dc.identifier.wosWOS:000268578200009en_US
dc.identifier.wosqualityN/A
dc.institutionauthorPekcan, Önderen_US
dc.language.isoenen_US
dc.publisherTaylor & Francis Incen_US
dc.relation.journalJournal of Macromolecular Science, Part Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCritical exponenten_US
dc.subjectEpoxy acrylateen_US
dc.subjectLight intensityen_US
dc.subjectPhoto-DSCen_US
dc.subjectPhotoinitiatoren_US
dc.titleCritical Exponents of Photoinitiated Gelation at Different Light Intensitiesen_US
dc.typeArticleen_US
dspace.entity.typePublication

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