Synthesis, characterization, thermal stability, conductivity, and band gap of a new aromatic polyether containing an azomethine as a side

Basit Öğe Kaydı
dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridYıldırım, Mehmet / 0000-0001-9948-9106
dc.contributor.authorKaya, İsmet
dc.contributor.authorYıldırım, Mehmet
dc.date.accessioned2025-01-27T20:48:01Z
dc.date.available2025-01-27T20:48:01Z
dc.date.issued2007
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, the oxidative polycondensation reaction conditions of 4-[(4-methylphenyl)iminomethyl]phenol (4-MPfMP) were studied by using oxidants such as air 0,, H(2)O(2), and NaOCl in an aqueous alkaline medium between 50 and 90 degrees C. The structures of the synthesized monomer and polymer were confirmed by FTIR, UV-vis, (1)H-(13)C-NMR, and elemental analysis. The characterization was made by TGA-DTA, size exclusion chromatography (SEC), and solubility tests. At the Optimum reaction conditions, the yield of poly-4[(4-methylphenyl)iminomethyl]phenol (P-4-MPIMP) was found to be 28% for air 02 oxidant, 42% for H(2)O(2) oxidant, and 62% for NaOCl oxidant. According to the SEC analysis, the number-average molecular weight (M(n)), weight-average molecular weight (M(w)), and polydispersity index values of P-4-MPIMP were found to be 4400 g mol(-1), 5100 g mol(-1), and 1.159, using H(2)O(2), and 4650 g mol-1, 5200 g mol(-1), and 1.118, using air 0,, and 5100 g mol-1, 5900 g mol-1, and 1.157, using NaOCl, respectively. According to TG analysis, the weight losses of 4-MPfMP and P-4-MPIMP were found to be 85.37% and 72.19% at 1000 degrees C, respectively. P-4-MPIMP showed higher stability against thermal decomposition. Also, electrical conductivity of the P-4-MPIMP was measured, showing that the polymer is a typical semiconductor. The highest occupied molecular orbital and the lowest unoccupied molecular orbital energy levels and electrochemical energy gaps (E(g)(')) of 4-MPIMP and P-4-MPIMP were found to be -5.76, -5.19; -3.00, -3.24; 2.76 and 1.95 eV, respectively. According to UV-vis measurements, optical band gaps (E(g)) of 4-MPIMP and P-4-MPIMP were found to be 3.34 and 2.82 eV, respectively. (c) 2007 Wiley Periodicals, Inc.
dc.identifier.doi10.1002/app.26939
dc.identifier.endpage2289
dc.identifier.issn0021-8995
dc.identifier.issue4
dc.identifier.scopus2-s2.0-35148879115
dc.identifier.scopusqualityQ2
dc.identifier.startpage2282
dc.identifier.urihttps://doi.org/10.1002/app.26939
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25116
dc.identifier.volume106
dc.identifier.wosWOS:000249590700017
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectoxidative polycondensation
dc.subjectpoly-4-[(4-methylphenyl)iminomethyl]phenol
dc.subjectair O(2)
dc.subjectNaOCI
dc.subjectH(2)O(2)
dc.subjectthermal analysis
dc.subjectconductivity and band gap
dc.titleSynthesis, characterization, thermal stability, conductivity, and band gap of a new aromatic polyether containing an azomethine as a side
dc.typeArticle

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