Thiophene-containing Schiff base polymers: synthesis, characterization, and anti-bacterial properties

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dc.contributor.authorKocaeren, Aysel Aydin
dc.contributor.authorKaratag, Elifnur
dc.date.accessioned2025-01-27T20:52:12Z
dc.date.available2025-01-27T20:52:12Z
dc.date.issued2023
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe synthesized the Schiff bases and their polymers, which contain thiophene units. For the synthesis process, first, hydroxynaphthalene di- and triol-derived Schiff bases that are abbreviated as (A1) and (A2) were prepared by a common condensation reaction. Second, their polymers named as B1 and B2 were separately synthesized from the oxidative polycondensation of the Schiff base monomers with (NH4)(2)S2O8 in an aqueous alkaline medium. The new polymeric structures that are abbreviated as B1-S and B2-S, containing thiophene groups, were synthesized by HBr elimination using B1 and B2 polymers. The characterization processes of the synthesized products were carried out using spectroscopic techniques such as FTIR, UV-Vis, H-1 and C-13 NMR, TG-DTG analysis, and MALDI-TOF MS. According to the TG analysis results, except for A2, the thermal stabilities of the other compounds were good since they left about 50% residue at 800 degrees C. SEM images of the compounds were recorded at different sizes, and also they were found to be quite different from each other. For example, A1 was like a ball. Additionally, A1, A2, B1, B2, B1-S, and B2-S were tested for their anti-bacterial activities against some bacteria types. Minimum inhibitory concentration (MIC) method was used for the anti-bacterial activity tests. The MIC test results showed that the synthesized polymers could be used as antimicrobial agents for surfaces with P. vulgaris NRRLB-123 bacteria at lower concentrations such as 15.625 and 31.25 mu g/mL. [GRAPHICS] .
dc.description.sponsorshipCanakkale Onekiz Mart University Scientific Research Projects Coordination Unit [FYL-2022-4007]
dc.description.sponsorshipWe would like to thank Dr. Neslihan DEMIR (Canakkale Onsekiz Mart University, Faculty of Sciences and Arts, Department of Biology, Canakkale, Turkey) for her help on anti-microbial tests. Additionally, the authors thank the Canakkale Onekiz Mart University Scientific Research Projects Coordination Unit (Project No.: FYL-2022-4007).
dc.identifier.doi10.1007/s13726-023-01211-7
dc.identifier.endpage1419
dc.identifier.issn1026-1265
dc.identifier.issn1735-5265
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85166563098
dc.identifier.scopusqualityQ2
dc.identifier.startpage1405
dc.identifier.urihttps://doi.org/10.1007/s13726-023-01211-7
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25693
dc.identifier.volume32
dc.identifier.wosWOS:001041864000001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofIranian Polymer Journal
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectHBr elimination
dc.subjectOxidative polymerization
dc.subjectSchiff base
dc.subjectThiophene
dc.subjectAnti-bacterial activitiy
dc.titleThiophene-containing Schiff base polymers: synthesis, characterization, and anti-bacterial properties
dc.typeArticle

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