Show simple item record

dc.contributor.advisorKaya, İsmet
dc.contributor.authorŞenol, Dilek
dc.date.accessioned2021-05-07T09:04:11Z
dc.date.available2021-05-07T09:04:11Z
dc.date.submitted2001
dc.date.issued2018-08-06
dc.identifier.urihttps://acikbilim.yok.gov.tr/handle/20.500.12812/604871
dc.description.abstractoz Bu çalışmada, 2-hidroksi-l-naftaldehitin, hava oksijeni, sodyumhipoklorit ve H2O2 ile oksidatif polikondensasyon reaksiyon koşulları ve ürünleri incelendi. NaOCl'nin O2 ve H2O2den daha aktif olduğu gözlendi. Optimum reaksiyon şartlan belirlendi. OHNA, HNA'nın hava oksijeni, H2O2 ve NaOCl'nin 50-95°C arasında, bazik sulu çözelti ortamında, oksidatif polikondensasyonundan sentezlendi. Ürünler, 'H-NMR, FT-IR, UV-Vis, elementel analiz ve TGA ile karakterize edildi. HNA'nın yaklaşık % 67'si OHNA'ya dönüşüldüğü anlaşıldı. TGA, OHNA'nın termo-oksidatif bozunmaya dirençli olduğunu gösterdi. OHNA'nın kütle kaybı 500°C'de %30.56 olarak bulundu. Ayrıca OHNA'nın anilin, /P-aminofenol ve trietilenglikol-bis.v-(4- aminofenileter) ile kondensasyonundan yeni oligomerik Schiff bazları sentezlendi bunların yapı özellikleri belirlendi. Anahtar Kelimeler: Oligo 2-hidroksi-l-naftaldehitin sentezi ve karakterizasyonu, oksidatif polikondenzasyon, oligomer schiff bazları.
dc.description.abstractABSTRACT In this study, oxidative polycondensation reaction conditions and the products of 2-hidroxy-l-naphtaldehyde with air oxygen sodium hypochloride and H2O2 were studied. NaOCl was observed to be more active than O2 and H2O2 and their optimum reaction conditions were determined. OHNA was synthesized from the oxidative polycondensation of HNA with air oxygen, H2O2, NaOCI in an aqueous alkaline medium between 50-95°C,the products were characterized by 'H-NMR, FT-IR, UV-Vis, elemental analysis and TGA. About 67% HNA was observed to be converted into OHNA. TGA analysis showed that the OHNA resistant to thermo-oxidative decomposition. The weight loss of OHNA were found to be % 38 at 500°C. New oligomeric Shiff-bases were synthesized from condensation of OHNA with aniline, /?-aminophenol and triethyleneglycol-6/.v-(4- aminophenyleter) and their the structures and properties were determined. Key words: Synthesis and characterization of oligo-2-hydroxy-l- naftaldehyde, oxidative polycondensation, oligomer-Schiff bases. IIen_US
dc.languageTurkish
dc.language.isotr
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsAttribution 4.0 United Statestr_TR
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectKimyatr_TR
dc.subjectChemistryen_US
dc.titleOligo 2-hidroksi-1-naftaldehitin schiff bazı oligomerlerinin sentez ve özelliklerinin incelenmesi
dc.title.alternativeStudy of synthesis and properties of schiff base oligomers oligo 2-hydroxy-1-naftaldehyde's
dc.typemasterThesis
dc.date.updated2018-08-06
dc.contributor.departmentKimya Ana Bilim Dalı
dc.subject.ytmOligomers
dc.subject.ytm2-hydroxy-1-naphthaldehyde
dc.subject.ytmOxidation
dc.subject.ytmSchiff bases
dc.identifier.yokid119401
dc.publisher.instituteFen Bilimleri Enstitüsü
dc.publisher.universityÇANAKKALE ONSEKİZ MART ÜNİVERSİTESİ
dc.identifier.thesisid114252
dc.description.pages77
dc.publisher.disciplineDiğer


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

info:eu-repo/semantics/openAccess
Except where otherwise noted, this item's license is described as info:eu-repo/semantics/openAccess