Synthesis and thermal characterization of novel poly(azomethine-urethane)s derived from azomethine containing phenol and polyphenol species
Yükleniyor...
Dosyalar
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Polymer Soc Korea
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Oligophenol-based poly(azomethine-urethane)s (PAMUs) were newly synthesized in two steps. At the first step, the prepolymers including the phenol and oligophenol based-Schiff bases were prepared by a condensation reaction of o-dianisidine with 4-hydroxybenzaldehyde/3-ethoxy-4-hydroxybenzaldehyde, and the polycondensation reactions of the corresponding Schiff bases in an aqueous alkaline media. At the second step, the PAMUs were obtained by copolymerization of the prepolymers with toluene-2,4-diisocyanate (TDI) under an argon atmosphere. The structures of the obtained compounds were confirmed by FTIR, UV-vis, H-1 NMR, and C-13 NMR, and size exclusion chromatography (SEC) techniques. The synthesized compounds were also characterized by TG-DTA and DSC analyses. Thermal decomposition steps at various temperatures were clarified by FTIR analyses of the degraded products. The physical changes to the synthesized PAMUs after exposing them to the thermal degradation steps are displayed.
Açıklama
WOS:000289168700012
Anahtar Kelimeler
Poly (Azomethine-Urethane), Thermal Degradation, Polyurethane, Oligophenol, O-Dianisidine
Kaynak
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
19
Sayı
3
Künye
Kaya, İ., Yıldırım, M., Avcı, A., Kamacı, M. (2011). Synthesis and thermal characterization of novel poly(azomethine-urethane)s derived from azomethine containing phenol and polyphenol species. Macromolecular Research, 19, 3, 286-293.
