عنوان المقالة:دراسة الخواص الطيفية والحرارية والكهروكيميائية لمواد جديدة مستقر حراريا زرقاء خفيفة ومستمدة من مادة البولي أميد العطرية Study of Spectral, Thermal and Electrochemical Properties of New Thermally Stable Blue Light Emitting Materials Based Aromatic Polyamides
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(amineamide)
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.
ازهر كامل رشيد | Azhar Kamil Rashid | 7776