Synthesis, characterization, conductivity and antimicrobial study of a novel thermally stable polyphenol containing azomethine group

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dc.authoridDemir, Haci Okkes -- 0000-0002-2078-010X; YILMAZ BARAN, Nuray -- 0000-0001-9725-3458
dc.contributor.authorYılmaz Baran, Nuray
dc.contributor.authorKarakışla, Meral
dc.contributor.authorDemir, Hacı Ökkeş
dc.contributor.authorSaçak, Mehmet
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:27:33Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:27:33Z
dc.date.issued2016
dc.departmentAksaray Teknik Bilimler Meslek Yüksekokulu
dc.description.abstractPoly(4-[[(4-methylphenyl)methylene]amino]phenol) (P(4-MMAP)), which is a Schiff base polymer, was synthesized by an oxidative polycondensation reaction of 4-[[(4-methylphenyl)methylene]amino]phenol (4-MMAP) with the oxidants NaOCl, H2O2 and O-2 in an aqueous alkaline medium. The polymerizations were carried out at various temperatures and times, and the highest polymer yield could be obtained when using 37% with NaOCl oxidant. The structures of the monomer and polymer were characterized by UV-Vis, FFIR H-1 NMR and X-ray diffraction techniques. The thermal behaviors of the monomer and polymer were identified by the TG and DTG techniques. The thermal degradation of the polymer which was observed thermally stable up to 1000 degrees C, was also supported by the Thermo-IR spectra recorded in the temperature range of 25-800 degrees C. The number average molecular weight (M-n), weight average molecular weight (M-w) and polydispersity index (PDI) of the polymer were found to be 16682, 57796 g/mol and 3.4, respectively. The highest electrical conductivity value of P(4-MMAP) doped with iodine vapor at different temperatures and times was measured to be 7.8 x 10(-5) Scm(-1) after doping for 48 h at 60 degrees C. The antibacterial and antifungal activities of 4-MMAP and P(4-MMAP) were also assayed against the bacteria Sarcina lutea, Enterobacter aerogenes, Escherichia coli, Enterococcus faecalis, Klebsiella pneumoniae, Bacillus subtilis and the fungi Candida albicans, Saccharomyces cerevisiae, respectively. (C) 2016 Elsevier B.V. All rights reserved.
dc.description.sponsorshipAnkara University [13B4240008]
dc.description.sponsorshipWe. would like to thank to Dr. Ashabil AYGAN (Kahramanmaras Sutcu Imam University, Faculty of Science and Arts, Department of Biology, Kahramanmaras, Turkey) for his help on antimicrobial tests. In addition to, we are grateful to the Ankara University Research Funds for the financial support of this work (Project No. 13B4240008).
dc.identifier.doi10.1016/j.molstruc.2016.06.028
dc.identifier.endpage161en_US
dc.identifier.issn0022-2860
dc.identifier.issn1872-8014
dc.identifier.scopusqualityQ1
dc.identifier.startpage153en_US
dc.identifier.urihttps://doi.org/10.1016/j.molstruc.2016.06.028
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5885
dc.identifier.volume1123en_US
dc.identifier.wosWOS:000381833100020
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofJournal of Molecular Structure
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectDoping
dc.subjectOxidative Polycondensation
dc.subjectPolyazomethines
dc.subjectSchiff Base Polymers
dc.subjectThermal Analysis
dc.titleSynthesis, characterization, conductivity and antimicrobial study of a novel thermally stable polyphenol containing azomethine group
dc.typeArticle

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