Synthesis of Stretchable, Environmentally Stable, Conducting Polymer PEDOT Using a Modified Acid Template Random Copolymer

Kim, Youngno; Kim, Joo-Young; Lee, Hongjoo J.; Chanil, Park; Im, Soeun; Kim, Jung Hyun

doi:10.1002/macp.201900465

Cited by 7 publications

(4 citation statements)

References 46 publications

(30 reference statements)

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“…The soft and elastomeric segments, PSS- b -PPEGMEA, were used as a matrix to synthesize PEDOT:PSS- b -PPEGMEA to generate intrinsically stretchable conductive polymers. Additionally, our research group synthesized a random copolymer comprising PSS and poly(ethylene glycol) methacrylate (PEGMA), and also grafted copolymers of PSS with polyethylene glycol (PEG) to obtain stretchable conducting polymers [ 17 , 18 ]. Modification of PSS significantly influenced the conformational changes of the PEDOT chains and easily reduced the intrinsic electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

2022

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Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has the merits of high electrical conductivity and solution processability, and can be dispersed in water. To improve the stretchability of PEDOT:PSS-based transparent electrode films, the intrinsically conducting polymer PEDOT:PSS was blended with highly stretchable nonionic waterborne polyurethane (WPU) and coated on a thermoplastic polyurethane (TPU) film. Nonionic WPU has good compatibility with PEDOT:PSS, without affecting the acidity. WPU undergoes hydrogen bonding and coulombic attractions with PEDOT:PSS. With variation of the WPU content, differences in the electrical properties, such as the sheet resistance and mechanical stretchability, of the coated thin films were observed. The film with 2.0 wt% WPU could be stretched to 400% of the electrode surface without damage to the surface of the electrode films. The WPU and TPU films both have a polyester group, which provides good adhesion between the WPU-based transparent electrodes and the TPU substrate films. A stretchable alternating current electroluminescence (ACEL) device was constructed by using the water-based PEDOT:PSS/nonionic WPU composite as both the bottom and top transparent electrodes. The fabricated ACEL remained its initial luminance in the 500% stretched state.

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Section: Introductionmentioning

confidence: 99%

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

2022

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“…The additives typically yield a favourable fibrillar morphology of the PEDOT, and also act as plasticizers for the material. Composites between PEDOT and modified copolymers have also been suggested [29][30][31]. PEDOT:PSS and polyurethane (PU) blends have been presented in stretchable ECD devices, but seemingly without efficient patterning [32,33].…”

Section: Introductionmentioning

confidence: 99%

Fully screen printed stretchable electrochromic displays

Linderhed

Petsagkourakis

Ersman

et al. 2021

Flex. Print. Electron.

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The advent of the Internet of Things and the growing interest in continuous monitoring by wearables have created a need for conformable and stretchable displays. Electrochromic displays (ECDs) are receiving attention as a cost-effective solution for many simple applications. However, stretchable ECDs have yet to be produced in a robust, large scale and cost-efficient manner. Here we develop a process for making fully screen printed stretchable ECDs. By evaluating commercially available inks with respect to electromechanical properties, including electrochromic PEDOT:PSS inks, our process can be directly applied in the manufacturing of stretchable organic electronic devices. The manufactured ECDs retained colour contrast with useful switching times at static strains up to 50 % and strain cycling up to 30 % strain. To further demonstrate the applicability of the technology, double-digit 7-segment ECDs were produced, which could conform to curved surfaces and be mounted onto stretchable fabrics while remaining fully functional. Based on their simplicity, robustness and processability, we believe that low cost printed stretchable ECDs can be easily scaled up and will find many applications within the rapidly growing markets of wearable electronics and the Internet of Things.

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“…After the reaction time of 24 h, cation and anion exchange resin was added to the reactor to remove the residual initiator and any other impurities of the reactions, such as sodium salt and stirred for 2 h. The solid contents of the acquired solution were adjusted to 1.0 wt%. After homogenization of the solution, a dark blue liquid solution was obtained in-situ PEDOT:PSS [ 36 , 37 ].…”

Section: Methodsmentioning

confidence: 99%

Dual-Cation Electrolytes Crosslinked with MXene for High-Performance Electrochromic Devices

Bae

Kim

et al. 2021

Nanomaterials

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MXene, a 2D material, is used as a filler to manufacture polymer electrolytes with high ionic conductivity because of its unique sheet shape, large specific surface area and high aspect ratio. Because MXene has numerous -OH groups on its surface, it can cause dehydration and condensation reactions with poly(4-styrenesulfonic acid) (PSSA) and consequently create pathways for the conduction of cations. The movement of Grotthuss-type hydrogen ions along the cation-conduction pathway is promoted and a high ionic conductivity can be obtained. In addition, when electrolytes composed of a conventional acid or metal salt alone is applied to an electrochromic device (ECD), it does not bring out fast response time, high coloration efficiency and transmittance contrast simultaneously. Therefore, dual-cation electrolytes are designed for high-performance ECDs. Bis(trifluoromethylsulfonyl)amine lithium salt (LiTFSI) was used as a source of lithium ions and PSSA crosslinked with MXene was used as a source of protons. Dual-Cation electrolytes crosslinked with MXene was applied to an indium tin oxide-free, all-solution-processable ECD. The effect of applying the electrolyte to the device was verified in terms of response time, coloration efficiency and transmittance contrast. The ECD with a size of 5 × 5 cm2 showed a high transmittance contrast of 66.7%, fast response time (8 s/15 s) and high coloration efficiency of 340.6 cm2/C.

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Synthesis of Stretchable, Environmentally Stable, Conducting Polymer PEDOT Using a Modified Acid Template Random Copolymer

Cited by 7 publications

References 46 publications

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

Water-Based Highly Stretchable PEDOT:PSS/Nonionic WPU Transparent Electrode

Fully screen printed stretchable electrochromic displays

Dual-Cation Electrolytes Crosslinked with MXene for High-Performance Electrochromic Devices

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