Elektron Salıcı ve Electron Çekici Grup İçeren Schiff Bazı Polimer Boyaların Sentez ve Karakterizasyonu

Dilek Şenol

Synthesis and Characterization of Schiff Base Polymer Dyes Containing Electron-Withdrawing and Electron Releasing Groups

Yıl 2017, Cilt: 45 Sayı: 1, 67 - 80, 01.03.2017

Öz

New thermally stable water soluble azo dye and azo-Schiff base polymer dyes were synthesized via conden- sation reaction of 4-methyl pyridine and poly- 4,4’-diamino biphenyl-2,2’-disulfonic acid with substituted azo-coupled 2-hydroxy-5- 4-nitrophenyl diazenyl benzaldehyde. For the structural analyses of synthesized substances FT-IR and NMR analysis, florescence and UV-Vis measurements for optical properties and the thermal behavior TG-DTA of the prepared dyes have been determined using thermogravimetric technique. Azomethine dyes AZOBMS and AZOBMSP have relatively higher thermal durability in comparison to azo dye AZOBM . The solvatochromic studies of the prepared dyes in DMSO, DMF, CH3CN and THF. In addition, spect- rophotometric and spectrofluorometric studies showed that these dyes were good absorbent and fluorescent. The effect of various organic solvents with different polarities on the UV-Vis spectra and fluorescence analyses of the dyes has been also studied.

Anahtar Kelimeler

Imine polymers, Synthesis, characterization and thermal analysis, azo-azomethine dyes

Kaynakça

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