Grafting of perylene and naphthalene fluorophores onto chitosan for improved thermal, optical and electrical properties

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dc.authorid0000-0003-0238-0169en_US
dc.authorid0000-0001-8352-8326en_US
dc.authorscopusid57219913949en_US
dc.authorscopusid7801633542en_US
dc.authorwosid-en_US
dc.authorwosidAAN-2681-2021en_US
dc.contributor.authorTemurlu, Selin
dc.contributor.authorAbureesh, Mosab A. A.
dc.contributor.authorAbourajab, Arwa
dc.contributor.authorKarşılı, Pelin
dc.contributor.authorDinleyici, Meltem
dc.contributor.authorAltınışık, Sinem
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2024-02-10T12:26:09Z
dc.date.available2024-02-10T12:26:09Z
dc.date.issued2024en_US
dc.departmentFakülteler, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü
dc.description.abstractThe grafting of N-(4-hydroxyphenyl)-3,4,9,10-perylenetetracarboxylic-3,4-anhydride-9,10-imide (4) and N-(4-hydroxyphenyl)-1,4,5,8-naphthalenetetracarboxylic-1,8-anhydride-4,5-imide (8) onto low-molecular-weight chitosan (5) was performed. The fluorescence, stability, electroactivity, conductivity, and solubility properties of the grafted chitosan polymer 9 were highly enhanced compared to the original chitosan. The weight-average molecular weight (Mw) of 19,800 g/mol was obtained. Grafted chitosan has even more excellent thermal stability with a higher initial decomposition temperature of 285 degrees C and char yield at 900 degrees C up to 73%. The fluorescence quantum yield efficiencies for polymer 9 are very high in all studied solvents (70% in CH3CN). The polymer showed five stepwise, fast, reversible one-electron reductions in electrochemical investigations due to the conductive fluorophores 4 and 8. The HOMO/LUMO levels were calculated as - 5.56 and - 4.14 eV, corresponding to the low band gap of 1.42 eV. The spectroelectrochemistry investigations confirmed the nature of the electron transfers. The morphological characterization using AFM, SEM, and TEM methods indicated a highly crystalline character of the grafted chitosan. The modified chitosan has the potential to be applied in various organic photonics and as a significant substrate material.en_US
dc.identifier.citationTemurlu, S., Abureesh, M. A. A., Abourajab, A., Karşılı, P., Dinleyici, M., Altınışık, S., … Icil, H. (2024). Grafting of perylene and naphthalene fluorophores onto chitosan for improved thermal, optical and electrical properties. Macromolecular Research, 1–17. https://doi.org/10.1007/s13233-023-00233-7en_US
dc.identifier.doi10.1007/s13233-023-00233-7
dc.identifier.issn1598-5032
dc.identifier.issn2092-7673
dc.identifier.scopus2-s2.0-85181234491
dc.identifier.urihttps://doi.org/10.1007/s13233-023-00233-7
dc.identifier.urihttps://hdl.handle.net/20.500.12428/5647
dc.identifier.wosWOS:001135865700002
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorAltınışık, Sinem
dc.institutionauthorKoyuncu, Sermet
dc.language.isoen
dc.publisherPolymer Society of Koreaen_US
dc.relation.ispartofMacromolecular Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectConducting polymeren_US
dc.subjectFluorescenceen_US
dc.subjectGrafted chitosanen_US
dc.subjectSpectroelectrochemistryen_US
dc.subjectThermal stabilityen_US
dc.titleGrafting of perylene and naphthalene fluorophores onto chitosan for improved thermal, optical and electrical properties
dc.typeArticle

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