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Thioxanthone based water-soluble photoinitiators for acrylamide photopolymerization

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dc.contributor.authorBalta, Demet Karaca
dc.contributor.authorTemel, Gokhan
dc.contributor.authorAydin, Meral
dc.contributor.authorArsu, Nergis
dc.contributor.institutionauthorAYDIN, Meral
dc.contributor.institutionauthorARSU, Nergis
dc.date.accessioned2026-06-27T12:51:17Z
dc.date.issued2010
dc.description.abstractThe two water-soluble thioxanthone-based 2-(carboxymethoxy) thioxanthone, 1A and 2-thioxanthone-thioacetic acid sodium salts, 2A were synthesized and characterized by spectroscopic methods. The quantum yield for fluorescence emission (phi(f)) in water was found to be 0.50 for 1A and 0.05 for 2A. The long phosphorescence lifetime, that is 201 and 114 ms in a matrix at 77 K for 1A and 2A, respectively, indicates a pi-pi* nature of the lowest triplet state. The triplet lifetimes were determined by laser flash photolysis as 12 and 12.6 mu s for 1A and 2A. Polymerization of acrylamide (AAm) was initiated by both initiators in water. Decarboxylation of initiators was achieved during 20 min of irradiation. It was found that 2A initiated polymerization of AAm in water more efficiently than 1A. (C) 2010 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipTUBITAK [106T407]
dc.description.sponsorshipDPT
dc.description.sponsorshipYildiz Technical University Research Foundation
dc.description.urihttps://doi.org/10.1016/j.eurpolymj.2010.03.022
dc.identifier.doi10.1016/j.eurpolymj.2010.03.022
dc.identifier.eissn1873-1945
dc.identifier.endpage1379
dc.identifier.issn0014-3057
dc.identifier.issue6
dc.identifier.startpage1374
dc.identifier.urihttps://hdl.handle.net/20.500.14981/47441
dc.identifier.volume46
dc.identifier.wos000279085200022
dc.language.isoeng
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofEUROPEAN POLYMER JOURNAL
dc.subjectFree radical polymerization
dc.subjectThioxanthone
dc.subjectType II system
dc.subjectWater-soluble photoinitiator
dc.subjectFREE-RADICAL POLYMERIZATION
dc.subjectVINYL MONOMERS
dc.subjectPHENYLTHIOACETIC ACID
dc.subjectCARBOXYLIC ACIDS
dc.subjectQUANTUM YIELD
dc.subjectSOLVENT
dc.subjectDECARBOXYLATION
dc.subjectBENZOPHENONE
dc.subjectINITIATORS
dc.subjectABSORPTION
dc.subjectPolymer Science
dc.titleThioxanthone based water-soluble photoinitiators for acrylamide photopolymerization
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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