Synthesis and characterization of conducting copolymers of quinoxaline derivatives

Abstract

Electrochemical copolymerizations of 2,3-di(2-thienyl)quinoxaline (M1), 6-methyl-2,3-di(2-thienyl)-quinoxaline (M2), and 2,3-di(2-thienyl)quinoxaline-6-yl)-(phenyl)methanone (M3) with 3,4-ethylenedioxy thiophene (EDOT) were carried out in CH 3 CN/TBABF 4 (0.1M) solvent-electrolyte couple via potentiodynamic electrolysis. The obtained copolymers were characterized by cyclic voltammetry (CV), Fourier transform-infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetry analyses (TGA). The conductivity measurements of copolymers and PEDOT were performed by the fourprobe technique.

Synthesis and characterization of conducting copolymer of Trans‐1‐(4‐methyl‐3′‐thienyl)‐2‐(ferrocenyl)ethene with EDOT

“…Differences in FTIR spectra between copolymer and monomer reveal the complete disappearance of CH peaks between 3102 cm −1 and out‐of‐plane bending CH peaks at 875 cm −1 . Disappearance of these peaks is the evidence of polymerization from 2‐ and 5‐positions of the thiophene moiety of monomer 5. The presence of a new peak at 950 cm −1 for copolymer is due to asymmetric COC stretching of etheric units that stems from comonomer EDOT 5.…”

“…Disappearance of these peaks is the evidence of polymerization from 2‐ and 5‐positions of the thiophene moiety of monomer 5. The presence of a new peak at 950 cm −1 for copolymer is due to asymmetric COC stretching of etheric units that stems from comonomer EDOT 5. The peak at 1141 cm −1 belongs to perchlorate ions.…”

“…However, a fundamental progress in the polymer science has absolutely changed this prospect. Synthesis of new types of polymeric materials with a remarkable electrical conductivity directly connected the polymer synthesis, applications, and electrochemistry 2–6. The preparation of conjugated polymers containing additional functional groups especially metal complexes and redox‐active species are of concern by material scientists 7–10…”

Pyridine Based Polymers: Synthesis and Characterization

“…On the other hand, thanks to its structural diversity, nitrogen containing heterocycles have also attracted considerable interest in recent years due to their unique properties [3][4][5] . Thiophene and quinoxaline copolymers have been employed as electronic carriers in electroluminescent devices 6 and as material for organic light-emitting devices 7 , among others.…”

Synthesis and Characterization of Polyaniline/Zinc Sulfite Composite Films and Investigation of Properties

“…Conducting polymers have been extensively investigated due to their potential applications in advanced electronic devices . Among these, polyaniline, polypyrrole, polythiophene, and their derivatives are of particular importance because they may be synthesized by electrochemical polymerization.…”