An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

Bahry, Teseer; Cui, Zhimin; Deniset‐Besseau, Ariane; Gervais, Matthieu; Sollogoub, Cyrille; Bui, Thanh‐Tuân; Rémita, Samy

doi:10.1039/c8nj01041b

Cited by 37 publications

(85 citation statements)

References 43 publications

(74 reference statements)

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“…To confirm that the EDOT monomers are polymerized into PEDOT, Fourier transform infrared spectroscopy (FTIR) is employed to compare the functional groups of SSP PEDOT, EDOT monomers, and PH1000. As shown in Figure 1A, the absorption bands around 1,364 cm −1 and 1,481 cm −1 in EDOT spectrum can be assigned to C-C and C=C bonds (Bahry et al., 2018, Loganathan and Pickup, 2005, Vaillant et al., 2006). They are shifted to 1,385 cm −1 and 1,400 cm −1 in SSP PEDOT and PH1000, implying that the conjugated structure is altered.…”

Section: Resultsmentioning

confidence: 94%

“…In addition, the absorption band around 746 cm −1 , 889 cm −1 , and 1,182 cm −1 for =C-H in-plane and out-of-plane vibrations are found in the EDOT spectrum. However, they are absent in SSP PEDOT and PH1000, suggesting the successful polymerization due to the formation of α-α coupling (Coletta et al., 2016, Bahry et al., 2018, Ghosh et al., 2014). Furthermore, a characteristic peak for –SO 3 - group is observed in SSP PEDOT, implying that MSA might exist in PEDOT film to act as counterions, similar to the role of PSS in PEDOT:PSS.…”

Section: Resultsmentioning

confidence: 99%

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Sequential Solution Polymerization of Poly(3,4-ethylenedioxythiophene) Using V2O5 as Oxidant for Flexible Touch Sensors

et al. 2019

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SummaryVarious in situ synthesis methods have been developed for the polymerization of 3,4-ethylenedioxythiophene monomers, such as electropolymerization, oxidative chemical vapor deposition, and vapor phase polymerization. Meeting industrial requirements through these techniques has, however, proven challenging. Here, we introduce an alternative method to fabricate highly conductive poly(3,4-ethylenedioxythiophene) (PEDOT) films in situ by solution means. The process involves sequential deposition of oxidants (V2O5 in this case) and monomers. Excess reactants and by-products can be completely removed from the PEDOT film by MeOH rinsing. The obtained PEDOT films possess good crystallinity and high doping level, with carrier concentration three orders of magnitude higher than that of the commercial product (PH1000, Heraeus GmbH). The electrical conductivity of the as-cast PEDOT film reaches up to 1,420 S/cm. In addition, this method is fully compatible with large-scale printing techniques. These PEDOT conducting films enable the realization of flexible touch sensors, which demonstrate superior flexibility and sensitivity.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Sequential Solution Polymerization of Poly(3,4-ethylenedioxythiophene) Using V2O5 as Oxidant for Flexible Touch Sensors

et al. 2019

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“…High‐energy irradiation has been applied to modify the characteristics of electrically conducting polymer films . When a polymer film is exposed to radiation, free radicals are generated in the molecular backbone.…”

Section: Introductionmentioning

confidence: 99%

Doped State and Solubility Changes in PEDOT:PSS Thin Films by High‐Energy Gamma‐Ray Irradiation

Jang

Park

Kim

2019

Physica Status Solidi (a)

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Poly(3,4‐ethylenedioxythiophene):poly(styrenesulphonate) (PEDOT:PSS) thin films with various electrical‐conductivity ranges are irradiated with gamma rays over a wide range of doses (1–50 kGy). Spectroscopic analyses reveal that the high‐energy irradiation results in changes in the doped state and chemical structure of the thin polymer films. Through the absorption measurement of the doped PEDOT:PSS films, the authors find that the films are relatively insensitive to irradiation and that the neutral state peaks in the de‐doped PEDOT decrease relative to the doped state as the gamma‐ray dose increases. The gamma‐ray irradiation up to 50 kGy results in a decrease in electrical conductivity in the already doped polymer films whereas it induces re‐doping and electrical‐conductivity enhancement in the chemically de‐doped ones. The high‐dose irradiation also induces chemical cross‐linking, resulting in thin films that are robust against solvent dipping.

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“…XRD spectra of the composite PEDOT:PSDA=1:1 synthesized in the absence (1) and the presence (1MF) of MF are given in figure 4. In the patterns, broad peaks at 25°are assigned to the amorphous origin of PEDOT [34]. The peak intensity becomes higher in the sample 1MF.…”

Section: Xrd Analysismentioning

confidence: 94%

Thermoelectric properties of poly (3,4-ethylenedioxy thiophene)/poly (sulfonic acid diphenyl aniline) composites synthesized in the absence and presence of magnetic field

Uğraşkan

Karaman

2020

Mater. Res. Express

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Poly(3,4-ethylenedioxy thiophene)/polysulfonic diphenyl aniline (PEDOT:PSDA) composites in the ratios of 1:0.5, 1:1, 1:1.5 and 1:2 were synthesized by oxidative chemical polymerization in the absence and presence of external constant magnetic field which the flux density is 3 kGa. The samples were characterized by UV-vis, FTIR-ATR and XRD. Their thermoelectric properties were obtained by means of electrical conductivities and Seebeck coefficients measurements. It was found that both the conductivity and Seebeck coefficients of the PEDOT:PSDA composites were increased in the presence of magnetic field. The conductivities of PEDOT:PSDA composites are lower whereas their Seebeck coefficients are considerably higher than that of commercial PEDOT:PSS. The highest power factor was obtained as 32 μW m -1 K −2 for the composite PEDOTPSDA=1:1 synthesized in the presence of magnetic field. The power factor of this sample was enhanced to 185 μW m -1 K −2 by a secondary doping with sodium dodecyl benzene sulfonate.

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An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

Abstract: We originally used radiation chemistry as an alternative methodology for synthesizing conducting polymers in an organic solvent.

Cited by 37 publications

References 43 publications

Sequential Solution Polymerization of Poly(3,4-ethylenedioxythiophene) Using V2O5 as Oxidant for Flexible Touch Sensors

Sequential Solution Polymerization of Poly(3,4-ethylenedioxythiophene) Using V2O5 as Oxidant for Flexible Touch Sensors

Doped State and Solubility Changes in PEDOT:PSS Thin Films by High‐Energy Gamma‐Ray Irradiation

Thermoelectric properties of poly (3,4-ethylenedioxy thiophene)/poly (sulfonic acid diphenyl aniline) composites synthesized in the absence and presence of magnetic field

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