Fluorescence quantum yields and chromatic properties of poly(azomethine)s containing pyridine ring

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dc.authoridKaya, Ismet/0000-0002-9813-2962
dc.authoridTemizkan Ozdamar, Kevser/0000-0001-7740-3252
dc.contributor.authorTemizkan, Kevser
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T21:03:47Z
dc.date.available2025-01-27T21:03:47Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe poly(azomethine)s containing pyridine ring were synthesized in two stages and analyzed by electrochemical, optical and thermal analysis techniques. Pyridine with centric dialdehyde (DA-Py) and poly(azomethine-pyridine)s (PAZ-Py)s were synthesized by elimination and condensation reactions in organic solvent medium, respectively. The structures of the synthesized dialdehyde and poly(azomethine-pyridine)s were verified by nuclear magnetic resonance spectroscopy (NMR), Fourier-transform infrared spectroscopy (FT-IR) and ultraviolet-visible spectroscopy (UV-Vis) analysis was performed and they were also characterized with cyclic voltammetry (CV), photoluminescence (PL) analysis, thermal analysis (TG-DTA) and Differential Scanning Calorimetric (DSC) analysis. According to thermal analysis, the initial degradation temperature (T-on) and glass transition temperature (T-g) values of PAZ-Py-1, PAZ-Py-2 and PAZ-Py-3 were found to be 126, 185, 139 degrees C and 102, 153 and 125 degrees C, respectively. According to fluorescence analysis, PAZ-Py-1 emitted four different colors of blue, green, orange and red emissions when excited at different wavelengths such as 340, 360, 380, 400, 420, 440 nm; 460, 480 nm; 500 nm; and 580 nm, respectively, in dimethylformamide (DMF) solutions. Also, two different colors were observed when excited at different wavelengths (blue emissions at 280, 300, 320, 340, 360, 380, 400, and 440 nm and orange emissions at 460, 480, 500, 520, 540, and 560 nm) in ethanol (EtOH) solutions. In addition, fluorescence quantum yields of PAZ-Py were found to be 9.0% and 11.0%; and 9.0% and 9.5% when excited at 440 and 460 nm in EtOH solution and when excited at 380 and 400 nm in DMF solutions, respectively.
dc.identifier.doi10.1016/j.mseb.2019.114483
dc.identifier.issn0921-5107
dc.identifier.issn1873-4944
dc.identifier.scopus2-s2.0-85075976588
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.mseb.2019.114483
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27447
dc.identifier.volume252
dc.identifier.wosWOS:000514021500012
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofMaterials Science and Engineering B-Advanced Functional Solid-State Materials
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPoly(azomethine)s
dc.subjectPoly(pyridine)s
dc.subjectMultichromatic emissions
dc.subjectThermal characteristics
dc.subjectFluorescence quantum yield
dc.titleFluorescence quantum yields and chromatic properties of poly(azomethine)s containing pyridine ring
dc.typeArticle

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