Percolation of Glassy Regions During Photopolymerization of Epoxy Acrylate in Dmf

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dc.contributor.authorDoğruyol, Zekeriya
dc.contributor.authorPekcan, Mehmet Önder
dc.contributor.authorArsu, Nergis
dc.contributor.authorDoğruyol, Sevnur Keskin
dc.contributor.authorPekcan, Önder
dc.date.accessioned2019-06-27T08:02:24Z
dc.date.available2019-06-27T08:02:24Z
dc.date.issued2015
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Biyoinformatik ve Genetik Bölümüen_US
dc.description.abstractThe gelation of epoxy acrylate (EA) 80% and tripropyleneglycol diacrylate (TPGDA) 20% was studied through the use of photo-differential scanning calorimetric (photo-DSC) technique in the presence of a thioxanthone based initiator. Photo-induced polymerization reactions were performed under identical conditions of temperature initiator concentration and UV light intensity in various NN-dimethylformamide (DMF) contents. 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 DMF content. During gelation it was observed that all conversion curves presented useful sigmoidal behavior which was predicted by employing a percolation model. Observations around the glass transition point t(g) revealed that gel fraction exponent beta obeyed the percolation picture. A significant solvent effect on the photopolymerization kinetics of EA/TPGDA was observed with changes in DMF content. DMF is used as solvent which acts as a diluent and proton donor during photogelation. (C) 2014 Elsevier B.V. All rights reserved.en_US]
dc.identifier.citationcount1
dc.identifier.doi10.1016/j.porgcoat.2014.11.010en_US
dc.identifier.endpage64
dc.identifier.issn0300-9440en_US
dc.identifier.issn0300-9440
dc.identifier.scopus2-s2.0-84920584486en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage59en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12469/612
dc.identifier.urihttps://doi.org/10.1016/j.porgcoat.2014.11.010
dc.identifier.volume80en_US
dc.identifier.wosWOS:000349511900008en_US
dc.identifier.wosqualityQ1
dc.institutionauthorPekcan, Önderen_US
dc.language.isoenen_US
dc.publisherElsevier Science SAen_US
dc.relation.journalProgress in Organic Coatingsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.scopus.citedbyCount1
dc.subjectPhotopolymerizationen_US
dc.subjectGlass transition pointen_US
dc.subjectPhotoinitiatoren_US
dc.subjectSolvent concentrationen_US
dc.subjectPhoto-DSCen_US
dc.titlePercolation of Glassy Regions During Photopolymerization of Epoxy Acrylate in Dmfen_US
dc.typeArticleen_US
dc.wos.citedbyCount1
dspace.entity.typePublication
relation.isAuthorOfPublicatione5459272-ce6e-44cf-a186-293850946f24
relation.isAuthorOfPublication.latestForDiscoverye5459272-ce6e-44cf-a186-293850946f24

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