How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes

Hofmann, Anna I.; Katsigiannopoulos, Dimitrios; Mumtaz, M.; Petsagkourakis, Ioannis; Pécastaings, Gilles; Fleury, Guillaume; Schatz, Christophe; Pavlopoulou, Eleni; Brochon, Cyril; Hadziioannou, Georges; Cloutet, Éric

doi:10.1021/acs.macromol.6b02504

Cited by 52 publications

(72 citation statements)

References 66 publications

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“…Absorption spectrum is feasible and effective for qualitative analysis of doping degree of PEDOT CPs . The vis‐NIR spectra for PEDOT:LGS4 and PEDOT:LGS4‐PFAs films were detected and shown in Figure b.…”

Section: Resultsmentioning

confidence: 98%

“…Film conductivity is one of the most important parameters for PEDOT CPs. Developing highly conductive PEDOT CPs is a very important subject and has attracted significant attention over the past decades . As is known, PEDOT CP is a conductive complex that is composed of a conductive component of PEDOT and a dopant.…”

Section: Introductionmentioning

confidence: 99%

“…As is known, PEDOT CP is a conductive complex that is composed of a conductive component of PEDOT and a dopant. The dopant greatly affects the intra‐ and inter‐chain charge hoping of PEDOT and thus plays a key role in determining the film conductivity . According to the molecular weight, dopant can be divided into small molecular dopant and polymeric dopant.…”

Section: Introductionmentioning

confidence: 99%

“…The conductivities of the most widely used Clevios P VP AI 4083 and PH1000 are between 10 −3 ‐10 −4 and 0.2‐1 S⋅cm −1 , respectively. However, owing to the high difficulty in the design and synthesis of polymeric dopants, only a limited amount of PEDOT:PSS alternatives have been reported . Nagaoka et al .…”

Section: Introductionmentioning

confidence: 99%

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Synergetic Effect of Perfluorooctanoic Acid on the Preparation of Poly(3,4‐ethylenedioxythiophene): Lignosulfonate Aqueous Dispersions with High Film Conductivity

Wang

et al. 2019

ChemistrySelect

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Developing poly(3,4‐ethylenedioxythiophene) (PEDOT) conducting polymers (CPs) aqueous dispersions with high film conductivity is an attractive task in scientific and industrial communities. Herein, we proposed to apply small molecular perfluorooctanoic acid (PFA) as assistant dopant to cooperate with major polymeric dopant of lignosulfonate (LGS) to prepare PEDOT aqueous dispersions together. Through optimizing the usage amount of PFA, a high film conductivity of 0.1255 S⋅cm−1 was obtained. In contrast, the film conductivity of the CP prepared without PFA was only 0.0228 S⋅cm−1. By lucubrating the structure of CPs, we found that PFA is capable of promoting the polymerization, doping and aggregation of PEDOT in the preparation process of PEDOT:LGS CP and the conductivity enhancement can be attributed to the enhancement of molecular weight, doping degree and aggregation of PEDOT. Moreover, the other physical‐chemical properties of PEDOT:LGS CPs including transmittance, work function and waterproofness were not obviously affected by PFA. This facile strategy based on physical mixing of small molecular and polymeric dopants may opens up a new window for the preparation of high performance CPs aqueous dispersions.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synergetic Effect of Perfluorooctanoic Acid on the Preparation of Poly(3,4‐ethylenedioxythiophene): Lignosulfonate Aqueous Dispersions with High Film Conductivity

Wang

et al. 2019

ChemistrySelect

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“…Several alternatives to metal nanoparticles, organic metal complexes, hybrids, CNTs, G, and GO, such as conducting polymers, have been developed: in fact, the synthesis and, therefore, the properties of a conducting polymer can be appropriately designed and tailored to meet the requirements for electrochemical applications In this context, poly (3,4-ethylenedioxythiophene) (PEDOT) is considered the most promising candidate to be used to manufacture highly flexible and printable electrodes due to a number of advantages, i.e., simplicity of manufacture, good mechanical stability, and high optical transmittance [13]. On the other hand, although PEDOT possesses good electrical conductivity [14], it is insoluble in many common organic solvents, making it difficult to be processed [15].…”

Section: Introductionmentioning

confidence: 99%

A Combined XRD, Solvatochromic, and Cyclic Voltammetric Study of Poly (3,4-Ethylenedioxythiophene) Doped with Sulfonated Polyarylethersulfones: Towards New Conducting Polymers

et al. 2018

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Despite the poor solubility in organic solvents, poly (3,4-ethylenedioxythiophene) (PEDOT) is one of the most successful conducting polymers. To improve PEDOT conductivity, the dopants commonly used are molecules/polymers carrying sulfonic functionalities. In addition to these species, sulfonated polyarylethersulfone (SPAES), obtained via homogeneous synthesis with different degrees of sulfonation (DS), can be used thanks to both the tight control over the DS and the charge separation present in SPAES structure. Here, PEDOTs having enhanced solubility in the chosen reaction solvents (N,N-dimethylformamide, dimethylacetamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone) were synthesized via a high-concentration solvent-based emulsion polymerization with very low amounts of SPAES as dopant (1% w/w with respect to EDOT monomer), characterized by different DS. The influence of solvents and of the adopted doping agent was studied on PEDOT_SPAESs analyzing (i) the chemical structure, comparing via X-ray diffraction (XRD) the crystalline structures of undoped and commercial PEDOTs with PEDOT_SPAES' amorphous structure; (ii) solvatochromic behavior, observing UV absorption wavelength variation as solvents and SPAES' DS change; and (iii) electrochemical properties: voltammetric peak heights of PEDOT_SPAES cast onto glassy carbon electrodes differ for each solvent and in general are better than the ones obtained for neat SPAES, PEDOTs, and glassy carbon.

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Electronically Conductive Hydrogels by in Situ Polymerization of a Water‐Soluble EDOT‐Derived Monomer

Nguyen

Nolin

et al. 2022

Adv Eng Mater

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Biomedical electronic devices can be interfaced with the human body to measure physiological signals [1,2] or to provide electrical stimulation for treatment. [3,4] Electronic materials that can be seamlessly interfaced with human tissues or cells are, therefore, essential to study or stimulate the nervous system, or to serve as neural tissue scaffolds. But, materials challenges remain to be addressed to bridge the gap between "soft" biological tissues and "hard" electronics. The mechanical mismatch between biological tissues and electronics can lead to scar formation between the electronics and the target tissue, which significantly hampers the performance and efficacy of bioelectronic stimulation and recording. [3,5,6] Conductive hydrogels are a promising strategy for interfacing electronic materials with biological tissues. [6,7] Due to their high water content (70-99 wt%), hydrogels can be as soft and flexible as biological tissues, including skin, muscle, heart, spinal cord, and brain (E < 100 kPa). [6] To impart electrical conductivity, conductive nanoparticles, such as metal nanowires (NWs) [8,9] carbon nanotubes (CNTs), [7] and conductive polymers [5,7,10] can be incorporated inside the hydrogel. NWs and CNTs, while effective at achieving electronically conductive hydrogels, were shown to lead to heterogeneities in the network and hydrogels with a high elastic modulus; overall leading to a poor interface with biological entities. [8] Compared to these nanocomposite hydrogels, conductive hydrogels made from conducting polymers (CPs), including poly(3,4-ethylenedioxythiophene) (PEDOT), [11,12] polypyrrole (PPy), [13][14][15] or polyaniline (PANI) [15,16] offer a higher compatibility with biological systems, by virtue of their flexibility and potential for ionic-as well as electronic-conductivity.Several methods have been envisioned for the preparation of conductive hydrogels from CPs. [17,18] The conducting polyelectrolyte complex of PEDOT with poly(styrene sulfonate) (PEDOT:PSS) can be gelled directly from its aqueous solution by increasing the ionic strength with bivalent ions Mg 2þ , Ca 2þ , or multivalent ions Fe 3þ , Ce 4þ . [19,20] These conductive hydrogels, however, are only weakly crosslinked leading to poor strength and contain residual ions, which could lead to potential inflammation and cell toxicity. [21] Thus, the purification process requires a large amount of distilled water for at least a week to wash out excess ions. [20] Another method is the use of secondary dopants, including sulfuric acid and dimethyl sulfoxide, as both

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How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes

Cited by 52 publications

References 66 publications

Synergetic Effect of Perfluorooctanoic Acid on the Preparation of Poly(3,4‐ethylenedioxythiophene): Lignosulfonate Aqueous Dispersions with High Film Conductivity

Synergetic Effect of Perfluorooctanoic Acid on the Preparation of Poly(3,4‐ethylenedioxythiophene): Lignosulfonate Aqueous Dispersions with High Film Conductivity

A Combined XRD, Solvatochromic, and Cyclic Voltammetric Study of Poly (3,4-Ethylenedioxythiophene) Doped with Sulfonated Polyarylethersulfones: Towards New Conducting Polymers

Electronically Conductive Hydrogels by in Situ Polymerization of a Water‐Soluble EDOT‐Derived Monomer

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