Electrosynthesis and charge-transport properties of poly(3′,4′-ethylenedioxy-2,2′:5′,2′′-terthiophene)

In situ conductivity measurements of polythiophene partially containing 3,4-ethylenedioxythiophene and 3-hexylthiophene

“…In situ conductivity measurements were made in acetonitrile solution of TEAP (0.1 mol dm −3 ) by the two-probe method [24,[26][27][28][29][30][31][32][33]. A solution of polyHE5T in o-dichlorobenzene (50 μL, 20 mg mL −1 ) was spin-coated (500 rpm for 5 s, then 2,000 rpm for 30 s) on a micro-array Pt electrode (ALS Co., Ltd., 65 lines, separation distance = 5 μm, total width = 260 mm).…”

“…In order to investigate the electrical properties of polyHE5T in detail, doping levels and electrical conductivities were measured in the potential range between [24,[26][27][28][29][30][31][32][33]. Figure 5a depicts semilogarithmic plots of doping level against electrode potential for the polyHE5T film.…”

“…Recently, we have synthesized a polythiophene partially containing EDOT in the repeat unit (polyTET, Fig. 1a) by electrolytic polymerization of the EDOT-containing terthiophene, 2,5-di(2-thienyl)-3,4-ethylenedioxythiophene (TET), as a monomer [24]. The resulting polymer was found to be soluble in dimethylsuldoxide (DMSO), tetrahedrofuran (THF), and dimethylformamide (DMF), and could be characterized by 1 H NMR and mass spectroscopies and gel permeation chromatography (GPC).…”

Synthesis and characterization of new copolymer of pyrrole and 3,4-ethylenedioxythiophene synthesized by electrochemical route

“…In the last years, the excellent properties of poly(3,4-ethylenedioxythiophene) (PEDOT) [3] have been combined with those of other typical conducting polymers. So far, copolymers of 3,4-ethylenedioxythiophene (EDOT) with thiophene [4,5], naphthalene [6] or pyrene [7] has been successfully obtained and studied. In the literature of recent years are also described interesting properties of polypyrrole (PPy) [8] and polymers of substituted pyrrole (Py) [9][10][11][12][13].…”

Synthesis of Soluble Polythiophene Partially Containing 3,4-Ethylenedioxythiophene and 3-Hexylthiophene by Polycondensation

“…However, there are few reports on the characterization of these polymers and their charge transport properties. Recently, we have synthesized a polythiophene partially containing EDOT unit in the repeat unit, poly(3',4'-ethylenedioxy-2,2':5',2''-terthiophene) (polyTET), by electrolytic polymerization of the EDOT-containing terthiophene, 3',4'-ethylenedioxy-2,2':5',2''-terthiophene (TET) (Scheme 1) [25]. The resulting polymer was found to be soluble in dimethylsuldoxide (DMSO), tetrahedrofuran (THF) and dimethylformamide (DMF), and could be characterized by 1 H NMR and mass spectroscopies, and gel permeation chromatography (GPC).…”