New fluorescein dye derivatives and their use as an efficient photoiniator using blue light LED

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dc.contributor.authorAlarcon, Rafael Turra [UNESP]
dc.contributor.authorGaglieri, Caroline [UNESP]
dc.contributor.authorda Silva, Bruno Henrique Sacoman Torquato [UNESP]
dc.contributor.authorda Silva Filho, Luiz Carlos [UNESP]
dc.contributor.authorBannach, Gilbert [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:32:13Z
dc.date.available2018-12-11T17:32:13Z
dc.date.issued2017-06-15
dc.description.abstractThis work investigates the degree of conversion, thermal properties, and morphological features of polymers obtained using UDMA monomer and fluorescein and its derivatives dyes as photoinitiator. Photopolymerization has opened new research and material due to its synthesis ability as well as ecological and economic advantages. Fluorescein is a dye with great fluorescent properties; therefore, it could be used as initiator in photopolymerization, including its derivatives. Simultaneous Termogravimetry-Differential Thermal Analysis and Derivative Thermogravimetric (TG/DTG-DTA), Differential Scanning Calorimetry (DSC), Middle Infrared Spectroscopy (MIR), and Scanning Electronic Microscopy (SEM) were used to determine thermal properties, degree of conversion, and morphological characteristics of polymers obtained. The data show that the use of fluorescein and its derivatives as photoinitiators did not change the thermal stability of the polymer (193.13 ± 7.9 °C); however, the chlorinated dyes produced a better degree of conversion (78.73% to F-2 and 69.36% to F-5) than brominated dyes (21.18% to F-3 and 1.21% to F-6), resulting in solid rigid polymers.en
dc.description.affiliationSão Paulo State University (UNESP) School of Sciences Chemistry Department
dc.description.affiliationUnespSão Paulo State University (UNESP) School of Sciences Chemistry Department
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 024/2012
dc.description.sponsorshipIdFAPESP: 2012/21450-1
dc.description.sponsorshipIdFAPESP: 2013/09022-7
dc.description.sponsorshipIdFAPESP: 2014/01337-1
dc.description.sponsorshipIdFAPESP: 2016/01599-1
dc.format.extent112-118
dc.identifierhttp://dx.doi.org/10.1016/j.jphotochem.2017.04.027
dc.identifier.citationJournal of Photochemistry and Photobiology A: Chemistry, v. 343, p. 112-118.
dc.identifier.doi10.1016/j.jphotochem.2017.04.027
dc.identifier.file2-s2.0-85018245132.pdf
dc.identifier.issn1010-6030
dc.identifier.scopus2-s2.0-85018245132
dc.identifier.urihttp://hdl.handle.net/11449/178813
dc.language.isoeng
dc.relation.ispartofJournal of Photochemistry and Photobiology A: Chemistry
dc.relation.ispartofsjr0,689
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleNew fluorescein dye derivatives and their use as an efficient photoiniator using blue light LEDen
dc.typeArtigo
unesp.departmentQuímica - FCpt

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