Effect of PEDOT:PSS content on structure and properties of PEDOT:PSS/poly(vinyl alcohol) composite fiber

Wang, Xinyue; Guyu, Feng; Li, Mengjuan; Ge, Mingqiao

doi:10.1007/s00289-018-2459-y

Cited by 47 publications

(33 citation statements)

References 39 publications

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“…The peaks at 1524 and 1271 cm –1 are assigned to CC and C–C stretching vibrations of the thiophene ring in PEDOT polymer chains, respectively. , The observed peaks at 946, 862, and 676 cm –1 correspond to the stretching of C–S bonds in the thiophene rings of PEDOT chains . Additionally, peaks at 1161, 1120, and 1057 cm –1 are assigned to the C–O–C bond stretching originating in the ethylenedioxy groups of PEDOT chains. ,, PSS functional groups are confirmed by the peaks at 1038 and 1010 cm –1 , which correspond to the stretching of a sulfonic acid group (SO 3 ), and the observed peak at 1632 cm –1 is related to the stretching of less strained CC bonds originating in the benzene rings found in PSS polymer chains. ,,, A noticeable decrease in the intensity of several peaks was observed with radiation exposure. Specifically, the peaks at 1524, 1271, and 862 cm –1 that are assigned to the CC, C–C, and C–S, respectively, in PEDOT chains exhibited a significant decrease in intensity.…”

Section: Results and Discussionmentioning

confidence: 85%

“…49 Additionally, peaks at 1161, 1120, and 1057 cm −1 are assigned to the C−O−C bond stretching originating in the ethylenedioxy groups of PEDOT chains. 50,47,51 PSS functional groups are confirmed by the peaks at 1038 and 1010 cm −1 , which correspond to the stretching of a sulfonic acid group (SO 3 ), and the observed peak at 1632 cm −1 is related to the stretching of less strained CC bonds originating in the benzene rings found in PSS polymer chains. 49,52,53,51 A noticeable decrease in the intensity of several peaks was observed with radiation exposure.…”

Section: Radiation Sensitivity and Long-term Stability Assessmentmentioning

confidence: 78%

“…50,47,51 PSS functional groups are confirmed by the peaks at 1038 and 1010 cm −1 , which correspond to the stretching of a sulfonic acid group (SO 3 ), and the observed peak at 1632 cm −1 is related to the stretching of less strained CC bonds originating in the benzene rings found in PSS polymer chains. 49,52,53,51 A noticeable decrease in the intensity of several peaks was observed with radiation exposure. Specifically, the peaks at 1524, 1271, and 862 cm −1 that are assigned to the CC, C− C, and C−S, respectively, in PEDOT chains exhibited a significant decrease in intensity.…”

Section: Radiation Sensitivity and Long-term Stability Assessmentmentioning

confidence: 78%

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Printed Low-Cost PEDOT:PSS/PVA Polymer Composite for Radiation Sterilization Monitoring

et al. 2022

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During the γ-radiation sterilization process, the levels of radiation exposure to a medical device must be carefully monitored to achieve the required sterilization without causing deleterious effects on its intended physical and chemical properties. To address this issue, here we have demonstrated the development of an all-printed disposable low-cost sensor that exploits the change in electrical impedance of a semi-interpenetrating polymer network (SIPN) composed of poly(vinyl alcohol) (PVA) and poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) as a functional polymer composite for radiation sterilization monitoring applications. Specifically, the PEDOT:PSS acts as the electrically conductive medium, while the PVA provides the ductility and stability of the printed sensors. During irradiation exposure, chain scission and cross-linking events occur concurrently in the PEDOT:PSS and PVA polymer chains, respectively. The concurrent scissoring of the PEDOT polymer and cross-linking of the PVA polymer network leads to the formation of a stable SIPN with reduced electrical conductivity, which was verified through FTIR, Raman, and TGA analysis. Systematic studies of different ratios of PEDOT:PSS and PVA mixtures were tested to identify the optimal ratio that provided the highest radiation sensitivity and stability performance. The results showed that PEDOT:PSS/PVA composites with 10 wt % PVA produced sensors with relative impedance changes of 30% after 25 kGy and up to 370% after 53 kGy (which are two of the most commonly used radiation exposure levels for sterilization applications). This composition showed high electrical impedance stability with less than ±5% change over 18 days after irradiation exposure. These findings demonstrate the feasibility of utilizing a printing technology for scalable manufacturing of low-cost, flexible radiation sensors for more effective monitoring of radiation sterilization processes.

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Section: Results and Discussionmentioning

confidence: 85%

Section: Radiation Sensitivity and Long-term Stability Assessmentmentioning

confidence: 78%

Section: Radiation Sensitivity and Long-term Stability Assessmentmentioning

confidence: 78%

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Printed Low-Cost PEDOT:PSS/PVA Polymer Composite for Radiation Sterilization Monitoring

et al. 2022

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“…The incorporation of both liquid [ 6 , 16 , 17 , 18 ] or solid additives [ 19 ] into the original water dispersion is indeed a simple and effective approach to enhance the electrical conductivity of the material. Other groups showed that carbon nanofillers improve the thermal stability [ 20 ] of PEDOT:PSS, and that the hydrogen-bonding interaction between the matrix and a polar filler could be beneficial as well for this purpose [ 21 ]. It is clear that the properties of the final device will depend on the interactions between PEDOT:PSS and the additive: (i) in the dispersion; (ii) during the deposition step; and (iii) in the final post-deposition treatment [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Additive Effect on the Structure of PEDOT:PSS Dispersions and Its Correlation with the Structure and Morphology of Thin Films

2021

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We reported on the interaction between poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) and high-boiling-point additives in PEDOT:PSS aqueous dispersions and in the final polymer films with the aim of stablishing correlations between the structure of both inks and solid thin films. By Small-Angle X-ray Scattering (SAXS) using synchrotron radiation, it was found that the structural changes of dispersions of PEDOT:PSS with high-boiling-point additives can be explained as a two-step mechanism depending on the additive concentration. A compaction of PEDOT:PSS grains was observed at low concentrations while a swelling of the grains together with a phase segregation between PEDOT and PSS segments was evidenced at larger concentrations. Thin films’ morphology and structure were investigated by atomic force microscopy (AFM) and synchrotron Grazing Incidence Wide-Angle X-ray Scattering (GIWAXS) respectively. Our two-step model provides an explanation for the small and sharp domains of PEDOT:PSS thin films observed for low-additive concentrations (first step) and larger domains and roughness found for higher-additive concentrations (second step). A reduction of the ratio of PSS in PEDOT:PSS thin films upon the presence of additives was also observed. This can be related to a thinning of the PSS shells of PEDOT:PSS grains in the dispersion. The results discussed in this work provide the basis for a controlled tuning of PEDOT:PSS thin films structure and the subsequent electrical properties.

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“…In addition, the treatment of ethylene glycol (EG) greatly improves the conductivity of the composite electrode, which is conducive to electrochemical energy storage. Owing to the strong hydrogen bond formed between the hydroxyl group of PVA and the sulfonate group in PEDOT:PSS, [ 30–32 ] the as‐prepared composite electrode has high porosity, stretchability, and compressibility, which is advantageous for enhancing the mechanical stability of the supercapacitor.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance PVA/PEDOT:PSS Hydrogel Electrode for All‐Gel‐State Flexible Supercapacitors

Liu

Qiu

Yang

et al. 2020

Adv Materials Technologies

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flexible supercapacitors (FSCs) has gradually replaced traditional batteries as an inevitable trend. [5-7] Among them, flexible supercapacitors are considered as the most potential candidates due to their high efficiency, long cycle life, and simple maintenance. Recently, researchers have devoted tremendous efforts to preparing flexible supercapacitors with bendable, foldable, and high softness characteristics. [8-12] Generally, a flexible supercapacitor is composed of flexible electrodes and a gel-state solid electrolyte. The flexible electrodes consist of electroactive materials that provide electrochemical performance and an elastic matrix that acts as the flexible skeleton. The electrochemical performance of the integrated composite electrode is mainly determined by the electroactive material, while the mechanical properties are determined by the flexible substrate material. At present, the commonly used flexible substrates are fabric, carbon cloth, elastoplastic film, and paper. [13-17] Although these flexible

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Effect of PEDOT:PSS content on structure and properties of PEDOT:PSS/poly(vinyl alcohol) composite fiber

Cited by 47 publications

References 39 publications

Printed Low-Cost PEDOT:PSS/PVA Polymer Composite for Radiation Sterilization Monitoring

Printed Low-Cost PEDOT:PSS/PVA Polymer Composite for Radiation Sterilization Monitoring

Additive Effect on the Structure of PEDOT:PSS Dispersions and Its Correlation with the Structure and Morphology of Thin Films

High‐Performance PVA/PEDOT:PSS Hydrogel Electrode for All‐Gel‐State Flexible Supercapacitors

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