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dc.contributor.authorDoğruyol, Zekeriya
dc.contributor.authorKarasu, Feyza
dc.contributor.authorBalta, Demet Karaca
dc.contributor.authorArsu, Nergis
dc.contributor.authorPekcan, Önder
dc.date.accessioned2019-06-27T08:06:18Z
dc.date.available2019-06-27T08:06:18Z
dc.date.issued2008
dc.identifier.issn0141-1594
dc.identifier.urihttps://hdl.handle.net/20.500.12469/1180
dc.identifier.urihttps://dx.doi.org/10.1080/01411590802136078
dc.description.abstractPhoto-differential scanning calorimetric (Photo-DSC) technique was used to study the gelation of P-3038 (epoxy acrylate (EA) 75% and tripropyleneglycoldiacrylate (TPGDA) 25%) in the presence of various thioxanthone-based initiators namely thioxanthone (TX) 5-thia-naphtacene-12-one (TX-NP) 2-(carboxymethoxy) thioxanthone (TX-OCH(2)COOH) 2-thioxanthone-thioacetic acid (TX-SCH(2)COOH) and 2-mercaptothioxanthone (TX-SH). Photopolymerization reactions were performed under identical conditions of temperature initiator concentration and UV light intensity. Photo-DSC technique allowed us to monitor the gelation without disturbing the system mechanically and to test the universality of the gelation as a function of some kinetic parameters like initiator concentration. During gelation it was observed that all conversion curves present a good sigmoidal behavior by predicting to employ percolation model. Observations around the glass transition point t(g) shows that the gel fraction exponents beta obeyed the percolation picture. On the other hand t(g) was found to be much higher for the crosslinked networks obtained with TX-OCH(2)COOH and TX-SCH(2)COOH initiators than those with the other initiators.
dc.language.isoEnglish
dc.publisherTaylor & Francis Ltd
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCritical exponent
dc.subjectPhotoinitiator
dc.subjectEpoxy acrylate
dc.subjectPhoto-DSC
dc.subjectGlass transition point
dc.titleUniversality in gelation of epoxy acrylate with various photoinitiators: a photo differential scanning calorimetric study
dc.typeArticle
dc.identifier.startpage935
dc.identifier.endpage947
dc.relation.journalPhase Transitions
dc.identifier.issue10
dc.identifier.volume81
dc.identifier.wosWOS:000259979800004
dc.identifier.doi10.1080/01411590802136078
dc.contributor.khasauthorPekcan, Önder


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