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KW - Poly(3,4-ethylenedioxythiophene)

Doped and de-doped nanotubes and nanowires of polypyrrole, polyaniline, and poly(3,4-ethylenedioxythiophene) were synthesized by the electrochemical polymerization method, using Al2O3 nanoporous templates. The electrical and optical properties of the nanotubes and nanowires were controlled through various synthetic conditions, such as doping level, dopant, and template-dissolving solvents. The diameters and wall thicknesses of the nanotubes were 100-200 nm and 10-30 nm, respectively. To determine the electrical and optical properties of the nano-systems, I-V characteristic curves with gate bias, dc conductivity, and UV-vis spectra were measured. We observed that the nano-systems were transformed from a conducting state to a semiconducting (or insulating) state through the process of de-doping using the template-dissolving solvents. Possible applications of these nanotubes and nanowires in the construction of nanotip emitters in field emission displays and polymer-based transistors are presented.

Polysciences Europe GmbH Badener Str. 1369493 Hirschberg an der Bergstrasse, Germany

Lee, B.H., Cho, Y.H., Shin, H., Kim, J., Lee, J., Lee, H., and Sung, M.M., "Selective Vapor-Phase Deposition of Conductive Poly(3,4-ethylenedioxythiophene) Thin Films on Patterned FeCl3 Formed by Microcontact Printing", Bull. Kor. Chem. Soc., 27 (10), 1633-1637 (2006)

3,4-Ethylenedioxythiophene substituted …

T1 - Synthesis and characterization of the carbon nanotube-based composite materials with poly(3,4-ethylenedioxythiophene)

AB - A composite material preparation approach has focused on a synthetic route that involves poly(3,4 ethylenedioxythiophene) (PEDOT) incorporation into the pores of mesoporous silica spheres (MSS). The analysis has fabricated colloidal crystal PEDOT@MASS550 to demonstrate the utility of the proposed materials for potential optoelectronic applications, and also used the etching of silica host with HF that offered an excellent route to prepare pure PEDOT particles. The combination of these materials allows the construction of novel photonic crystals architectures based on the electrochemically tunable opals, and suits the self-assembly of the proposed materials into crystalline colloidal arrays, and a high mass-percent loading of polymers. The main focus was the improved quality of crystalline material using a 30% (v/v) solution of EDOT in toluene to initially fill the pores of the MSS550 silica that results in pores 30% filled with EDOT and 70% filled with toluene.

We report a procedure to prepare a conducting nano-composites composed of multi-walled carbon nanotubes (MWNTs) and PEDOT by using a poly(sodium 4-styrenesulfonate) (PSSNa) as a inter-linking molecule between MWNT and PEDOT. When PSSNa chains are introduced on the MWNTs via physicochemical interaction, the surface of MWNT becomes negatively charged, and PSS-modified MWNTs promote the effective association of the positively charged PEDOT chains. The resulting MWNT-PSS/PEDOT composites are characterized by a better interconnection between MWNT and PEDOT components.

3,4-Ethylenedioxythiophene substituted phthalocyanines

3,4-Ethylenedioxythiophene substituted phthalocyanines Hasan ..

AB - Doped and de-doped nanotubes and nanowires of polypyrrole, polyaniline, and poly(3,4-ethylenedioxythiophene) were synthesized by the electrochemical polymerization method, using Al2O3 nanoporous templates. The electrical and optical properties of the nanotubes and nanowires were controlled through various synthetic conditions, such as doping level, dopant, and template-dissolving solvents. The diameters and wall thicknesses of the nanotubes were 100-200 nm and 10-30 nm, respectively. To determine the electrical and optical properties of the nano-systems, I-V characteristic curves with gate bias, dc conductivity, and UV-vis spectra were measured. We observed that the nano-systems were transformed from a conducting state to a semiconducting (or insulating) state through the process of de-doping using the template-dissolving solvents. Possible applications of these nanotubes and nanowires in the construction of nanotip emitters in field emission displays and polymer-based transistors are presented.

Dimethyl 2'-iodomethyl-3, 4-ethylendioxy-thiophene-2, 5-dicarboxylate (3) and dimethyl 2'-iodopropyl-3, 4-dioxythiophene-2, 5-dicarboxylate (3') as well as 3, 4-ethylendioxy-2'-hydroxymethyl-thio-phene (4) and 3, 4-dioxy-2'-hydroxypropyl-thiophene (4') were synthesized by using the mixture.

Synthesis of Poly(3,4-ethylenedioxythiophene) …
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Synthesis of poly(3, 4-ethylenedioxythiophene) coating …

N2 - We report a procedure to prepare a conducting nano-composites composed of multi-walled carbon nanotubes (MWNTs) and PEDOT by using a poly(sodium 4-styrenesulfonate) (PSSNa) as a inter-linking molecule between MWNT and PEDOT. When PSSNa chains are introduced on the MWNTs via physicochemical interaction, the surface of MWNT becomes negatively charged, and PSS-modified MWNTs promote the effective association of the positively charged PEDOT chains. The resulting MWNT-PSS/PEDOT composites are characterized by a better interconnection between MWNT and PEDOT components.

Nanocomposites of poly(3,4-ethylenedioxythiophene) …

AB - We report a procedure to prepare a conducting nano-composites composed of multi-walled carbon nanotubes (MWNTs) and PEDOT by using a poly(sodium 4-styrenesulfonate) (PSSNa) as a inter-linking molecule between MWNT and PEDOT. When PSSNa chains are introduced on the MWNTs via physicochemical interaction, the surface of MWNT becomes negatively charged, and PSS-modified MWNTs promote the effective association of the positively charged PEDOT chains. The resulting MWNT-PSS/PEDOT composites are characterized by a better interconnection between MWNT and PEDOT components.

Preparation of 2,2′-di(3,4-ethylenedioxythiophene)s

N2 - A composite material preparation approach has focused on a synthetic route that involves poly(3,4 ethylenedioxythiophene) (PEDOT) incorporation into the pores of mesoporous silica spheres (MSS). The analysis has fabricated colloidal crystal PEDOT@MASS550 to demonstrate the utility of the proposed materials for potential optoelectronic applications, and also used the etching of silica host with HF that offered an excellent route to prepare pure PEDOT particles. The combination of these materials allows the construction of novel photonic crystals architectures based on the electrochemically tunable opals, and suits the self-assembly of the proposed materials into crystalline colloidal arrays, and a high mass-percent loading of polymers. The main focus was the improved quality of crystalline material using a 30% (v/v) solution of EDOT in toluene to initially fill the pores of the MSS550 silica that results in pores 30% filled with EDOT and 70% filled with toluene.

A Novel Poly(3,4-ethylenedioxythiophene)-graphene …

T1 - Synthesis, characteristics, and field emission of doped and de-doped polypyrrole, polyaniline, poly(3,4-ethylenedioxythiophene) nanotubes and nanowires

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