Synthesis of Aromatic Conjugated Main Chain Azobenzene Polymers and Their Properties

Basit Öğe Kaydı
dc.contributor.authorBilen, Zeynep
dc.contributor.authorBudak, Erhan
dc.contributor.authorBayazit, Mustafa Kemal
dc.contributor.authorÖzarslan, Özdemir
dc.date.accessioned2024-09-25T20:17:00Z
dc.date.available2024-09-25T20:17:00Z
dc.date.issued2019
dc.departmentAbant İzzet Baysal Üniversitesien_US
dc.description.abstractAzobenzene polymers have great potential and impact on fundamental and applied research. Howeverlittle is known about their thermal stability and degradation behavior. Herein, nine conjugated mainchain azobenzene polymers were synthesized using the nitroamine derivatives of some diphenylenecompounds such as 4-amino-4?-nitrobiphenyl 1, 4-amino-4?-nitrobiphenyl ether 2 and 4-amino-4?-nitrobiphenyl sulfide 3, and comonomers triphenylamine A, N-methyldiphenyl amine B andtriphenylphosphine C via a diazo coupling reaction. These heteroatom-containing polymers werecharacterized by 1H- and 31P-NMR, FTIR, UV–Vis and Raman spectroscopy. The thermal stability anddegradation behavior of these polymers were studied by means of TGA technique. Electronic spectra ofthe polymers recorded in DMF showed two strong maxima at ca. 280 and 380 nm. They were resistantto heat up to 270 °C and, produced 41-61% char under a nitrogen atmosphere at 800 °C. UL 94 burningtests performed for TPU Ravathane® (TPE-U) with added azobenzene polymer revealed that thesepolymers could be used as an intumescent reactive flame retardant additive, particularly forpolyurethanes and elastomers, due to their high char yield at relatively high temperatures (e.g 800 °C).The carbonized materials were further characterized by XRD and SEM/EDX.en_US
dc.identifier.doi10.18466/cbayarfbe.446974
dc.identifier.endpage336en_US
dc.identifier.issn1305-130X
dc.identifier.issn1305-1385
dc.identifier.issue4en_US
dc.identifier.startpage329en_US
dc.identifier.trdizinid383767en_US
dc.identifier.urihttps://doi.org/10.18466/cbayarfbe.446974
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/383767
dc.identifier.urihttps://hdl.handle.net/20.500.12491/15365
dc.identifier.volume15en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofCelal Bayar Üniversitesi Fen Bilimleri Dergisien_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzYK_20240925en_US
dc.titleSynthesis of Aromatic Conjugated Main Chain Azobenzene Polymers and Their Propertiesen_US
dc.typeArticleen_US

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