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Benzoin type photoinitiator for free radical polymerization

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dc.contributor.authorEsen, Duygu Sevinc
dc.contributor.authorArsu, Nergis
dc.contributor.authorDa Silva, Jose P.
dc.contributor.authorJockusch, Steffen
dc.contributor.authorTurro, Nicholas J.
dc.contributor.institutionauthorARSU, Nergis
dc.date.accessioned2026-06-27T13:23:42Z
dc.date.issued2013
dc.description.abstractBenzoin, a popular photoinitiator for free radical polymerization of vinyl monomers, was improved by introduction of two methyl thioether substituents. This new benzoin derivative showed an about 50 times higher light absorption in the near-UV spectral region and performed better than the unsubstituted benzoin in polymerization experiments in bulk solutions or films of acrylate monomers when low initiator concentrations are used. Laser flash photolysis, low temperature luminescence experiments and photoproduct studies by mass spectrometry suggest that a slow -cleavage mechanism (k = 2.2 x 105 s1) from the electronic triplet state with a quantum yield of 0.1 is the primary photoreaction to generate the initiating free radicals. (c) 2013 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013, 51, 1865-1871en
dc.description.sponsorshipYildiz Technical University [2011-01-02-DOP02]
dc.description.sponsorshipTUBITAK-BIDEB
dc.description.sponsorshipFundacao para a Ciencia e Tecnologia (FCT) [REEQ/717/QUI/2005]
dc.description.sponsorshipNational Science Foundation [NSF-CHE-11-11398]
dc.description.sponsorshipDivision Of Chemistry
dc.description.sponsorshipDirect For Mathematical & Physical Scien [1111392] Funding Source: National Science Foundation
dc.description.urihttps://doi.org/10.1002/pola.26569
dc.identifier.doi10.1002/pola.26569
dc.identifier.eissn1099-0518
dc.identifier.endpage1871
dc.identifier.issn0887-624X
dc.identifier.issue8
dc.identifier.startpage1865
dc.identifier.urihttps://hdl.handle.net/20.500.14981/52584
dc.identifier.volume51
dc.identifier.wos000316118200021
dc.language.isoeng
dc.publisherWILEY
dc.relation.ispartofJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
dc.subjectlaser flash photolysis
dc.subjectphotoinitiator
dc.subjectphotopolymerization
dc.subjectphotochemistry
dc.subjectphotophysics
dc.subjectradical polymerization
dc.subjectPHOTOCHEMICAL ALPHA-CLEAVAGE
dc.subjectPolymer Science
dc.titleBenzoin type photoinitiator for free radical polymerization
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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