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Vol. 28 No. 8 (2016): Vol 28 Issue 8

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Study of Spectral, Thermal and Electrochemical Properties of New Thermally Stable Blue Light Emitting Materials Based Aromatic Polyamides

https://doi.org/10.14233/ajchem.2016.19807
Azhar Kamil Rashid
Department of Chemistry, College of Education for Pure Science/Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq

Corresponding Author(s) : Azhar Kamil Rashid

azhar_almasody@yahoo.co.uk

Asian Journal of Chemistry, Vol. 28 No. 8 (2016): Vol 28 Issue 8

Abstract

In this study, new triphenylamine with aromatic diacid monomers, 4,4'-dicarboxy-4''-acetyl-triphenylamine (AC1), 4,4'-dicarboxy-4''-ethyl-triphenylamine (AC2), 4,4'-dicarboxy-4''-methoxy-triphenylamine (AC3) were successfully synthesized by the aromatic nucleophilic displacement reaction of 4-fluorobenzonitrile with three aniline-derivatives using sodium hydride as the base, followed by alkaline hydrolysis of the di-cyanides intermediates (CY1, CY2, CY3). From these di-acids monomers, a series of poly(amine-amide)s were prepared by the phosphorylation poly-condensation reaction with different aromatic diamines. FTIR, 1H and 13C NMR spectroscopic techniques were used to identify the chemical structures of all resultant compounds and poly(amine-amide)s. These aromatic poly(amine-amide)s have a good solubility in several organic solvents and gave strong and tough thin films via solution casting. They exhibited excellent thermal stability associated with high glass transition temperatures (Tg). In dilute N-methyl pyrrolidone solution, these polymers exhibited a strong photoluminescence in the blue region. Cyclic voltammetry of the results polyamides films cast onto an ITO-coated glass substrate in dry acetonitrile containing 0.1 M of tetrabutylammonium perchlorate as an electrolyte exhibited one oxidation redox couples.

Keywords

Hole-transporting materials Triphenylamine Emitting layer
Rashid, A. K. (2016). Study of Spectral, Thermal and Electrochemical Properties of New Thermally Stable Blue Light Emitting Materials Based Aromatic Polyamides. Asian Journal of Chemistry, 28(8), 1739–1746. https://doi.org/10.14233/ajchem.2016.19807
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