Preparation of polypyrrole by chemical oxidation: applications for sensor studies

Pavithra, S.; Thejas, R.; Rao, H. N. Anil; Krishna, B. S.; Nagaraju, G.

doi:10.1007/s13233-023-00210-0

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…Polypyrrole (PPy) is a conjugated polymer formed by the polymerization of pyrrole monomers, 68 and has the advantages of excellent electrical conductivity, biocompatibility, and low cost. 69 After its introduction into hydrogels, although high electrical conductivity can be obtained, the mechanical properties of PPy hydrogels deteriorate. By immersing the pre-prepared brittle PPy hydrogels into poly(vinyl alcohol) (PVA) solution, the mechanical properties of the conductive hydrogels can be effectively improved by utilizing repeated freeze-thawing, mainly due to the extensive hydrogen bonding between PPy and PVA as well as the entangled PVA chains further supporting the skeletal structure of the interconnecting PPy network.…”

Section: Representative Strategies For the Preparation Of Conductive ...mentioning

confidence: 99%

The latest research progress of conductive hydrogels in the field of electrophysiological signal acquisition

Ding,

Gu,

Ren

et al. 2024

J. Mater. Chem. C

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Section: Representative Strategies For the Preparation Of Conductive ...mentioning

confidence: 99%

The latest research progress of conductive hydrogels in the field of electrophysiological signal acquisition

Ding,

Gu,

Ren

et al. 2024

J. Mater. Chem. C

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Electrochemical and semiconducting properties of multifunctional smart conductive fabrics based on polypyrrole

Sagirli,

Karazehir,

Sarac

2024

J of Applied Polymer Sci

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We have fabricated multifunctional conductive fabrics composed of polypyrrole/BaTiO3/poly(acrylonitrile‐co‐methylacrylate) (PPy/BaTiO3/P(AN‐co‐MA)(PBA) utilizing a simple process including dip coating and in situ chemical polymerization of pyrrole, which oxidized both ammonium persulfate (APS) and ammonium persulfate + iron (III) chloride (APS + FeCl3) for flexible and wearable textile applications. The influence of the oxidant nature, PPy content, and BaTiO3 on the surface structures, electrochemical, and semiconducting characteristics of the fabrics was examined using scanning electrochemical microscopy (SEM), electrochemical impedance spectroscopy (EIS), and the Mott–Schottky (M–S) studies. The study revealed that the size of the polymer nanostructures on fabric has an impact on the electrochemical impedance properties. Specifically, a decrease in diameter (when FeCl3 + APS is used) or the formation of more compact swelling surface structures (when only APS is used) is associated with changes in the conductivity of the coated fabric. Based on the EIS tests, the composite coating (S0.1, S0.2, and S0.3) with FeCl3 has a higher electrical conductivity compared to the coating with APS (PBA). The M–S tests indicate that the semiconducting characteristics of coated fabrics are dependent upon the kind of oxidant, the amount of PPy, and the presence of BaTiO3.

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Preparation of polypyrrole by chemical oxidation: applications for sensor studies

Cited by 2 publications

References 39 publications

The latest research progress of conductive hydrogels in the field of electrophysiological signal acquisition

The latest research progress of conductive hydrogels in the field of electrophysiological signal acquisition

Electrochemical and semiconducting properties of multifunctional smart conductive fabrics based on polypyrrole

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