Abstract
In this work, new di-acid monomers 4, 4’-di-carboxillic-4â€-bromo-2â€, 6â€-dimethyl triphenylamine (Ma), 4, 4’- di-carboxylic -4â€-chloro-2â€, 6â€-dimethyl triphenylamine (Mb) and 4, 4’- di-carboxylic -2â€,4â€-dichloro-6â€-methyl triphenylamine (Mc) were synthesized by reaction of p-cyanobenzofluride with three different aromatic amines (4-bromo,2,6-dimethyl aniline, 4-chloro,2,6-dimethyl aniline and 2,4 dichloro, 6- methyl aniline ) via aromatic nucleophilc substitution method to form three di cyano intermediates 4, 4’-Dicyano-4â€-bromo-2â€, 6â€-dimethyl triphenylamine (Da), 4, 4’-dicyano-4â€-chloro-2â€, 6â€-dimethyl triphenylamine (Db) and 4, 4’-dicyano-2â€,4â€-dichloro-6â€-methyl triphenylamine (Dc) which form final di-carboxylic monomers after alkaline hydrolysis. Finally, these monomers react with two different aromatic di amines, phenylene diamins and benzidine respectively via polycondensation reaction to form final polyamides 4"-bromo-2", 6"-dimethyl-triphenylamine-4, 4'-polyphenylbenzamide (Pa), 4â€-chloro-2â€,6â€-dimethyl- triphenylamine-4,4'-polyphenylbenzamide (Pb), 2â€,4â€-dichloro-6â€-methyl-triphenylamine 4,4'- polyphenylbenzamide (Pc),4"-bromo-2",6"-dimethyl triphenylamine-4,4'- polyphenylbiphenylamide (Pd), 2â€,4â€-dichloro-6â€-methyl-triphenylamine-4,4’-polyphenylamide (Pf).
 The chemical structure of these polymers characterized by FTIR and NMR techniques. All the results of polyamides showed excellent solubility in most polar solvents to form strong thin films. The polyamides possess a good thermal stability with height glass transition temperatures (Tg).
 Polyamides in DMSO solvent gave strong photoluminescence PL. Thin casting films of these polyamides in cyclic voltammetry (C.V) on glass base of iridium-tin oxide (ITO) as working electrode in dry CH3CN solvent contains 0.1 M of tetrabutylantimoneperchlorate (TBAP) as an
 Electrolyte gave one redox wave.
Highlights
Polyamides having triphenyl amine which are characterized by their hole transporting groups, are known in the application of polyamides light emitting (PLEDs)
Characterization Technique The spectrum of FT-IR for all new materials was easured by a Spotlight 400 Perkin-Elmer spectrometer. 1H and13C- NMR data are recorded by a JEOL spectrometer
DSC and TGA were performed on a Perkin Elmer DSC6 instrument under N2 atmosphere with a scan rate of 20 °C/min and an SDT Q600 thermogravimetric analyzer
Summary
Polyamides having triphenyl amine which are characterized by their hole transporting groups, are known in the application of polyamides light emitting (PLEDs). These types of polymers have received great attention because of their important applications in many fields, including screens and lighting points [1,2]. All aromatic polyamides are resulted as high-performance polymers due to their high thermal and mechanical stabilities and good chemical properties [14,15] These polymers are recognized as a very rigid because of hydrogen bonding between polymers backbones so when balk group are incorporated between the backbones. Electrochromic materials can convert color reversibly by mean of important result of energy saving and sufficient electrochemical potential or redox steps
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