Synthesis of Conductive Polymer-based Composite Particles

Fujii, Syuji

doi:10.1246/cl.230235

Cited by 4 publications

(4 citation statements)

References 131 publications

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“…There have been reports of fabrics coated with PPy overlayers and used as heat generators, absorbers of microwaves, antistatic fibers and gas or strain sensors, , neuronal tissue scaffolds, and electromagnetic shielding materials . Recently, the coating of solid substrates with PPy overlayers were discussed in the review articles. , In this study, PPy-coated fabrics with different PPy sheath thicknesses were synthesized as precursors for NCC tubes via an aqueous chemical oxidative seeded polymerization at 1, 5, and 10 wt % Py concentrations (based on fabrics). Here, the cotton fibers, which are naturally derived materials and mainly consist of cellulose, were specifically studied because of their efficient coating with the PPy sheath (see below).…”

Section: Resultsmentioning

confidence: 99%

“…77 Recently, the coating of solid substrates with PPy overlayers were discussed in the review articles. 78,79 In this study, PPy-coated fabrics with different PPy sheath thicknesses were synthesized as precursors for NCC tubes via an aqueous chemical oxidative seeded polymerization at 1, 5, and 10 wt % Py concentrations (based on fabrics). Here, the cotton fibers, which are naturally derived materials and mainly consist of cellulose, were specifically The PPy nuclei deposited from the bulk aqueous medium accumulated onto the fiber surface and formed a sheath directly on the fiber via polymerization to minimize the interfacial free energy.…”

Section: ■ Introductionmentioning

confidence: 99%

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Nitrogen-Containing Carbon Tubes Fabricated by Light Irradiation

Matsui,

Yamamoto,

Oyama

et al. 2024

Langmuir

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Cotton-core/polypyrrole (PPy)-sheath fibers (cotton/PPy fibers) were synthesized by aqueous chemical oxidative seeded polymerization and were utilized as precursors for nitrogencontaining carbon (NCC) tubes. Irradiation of the cotton/PPy fibers with a near-infrared (NIR) laser heated them to approximately 300 °C due to light-to-heat photothermal conversion by the PPy, and the cotton core was thermally decomposed and vaporized. Scanning electron microscopy studies revealed the formation of tubes with monodispersed diameters, and elemental microanalysis, Fourier transform infrared spectroscopy, and Raman spectroscopy confirmed that the PPy sheath was converted into NCC. Furthermore, sunlight also worked as the light source in fabricating the NCC tubes. The thicknesses of the tubes were controlled between 410 nm and 2.30 μm by tuning the PPy sheath thickness. The method developed in this study can be extended to other polymeric fibers, including acrylic and wool fibers. The shapes of the cross sections and surface nanomorphologies of the NCC tubes can be reflected in those of the polymer/PPy fibers.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Nitrogen-Containing Carbon Tubes Fabricated by Light Irradiation

Matsui,

Yamamoto,

Oyama

et al. 2024

Langmuir

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“…In recent years, the size and morphology control of conjugated polymers in microscopic and macroscopic scales has attracted much interest for their applications. 19–23 In the present work, the precipitation polymerization of BQ–Py in the solution phase was studied to control the reaction, size, and morphology (Fig. 1c and d).…”

Section: Introductionmentioning

confidence: 99%

Morphology and size control of an amorphous conjugated polymer network containing quinone and pyrrole moieties via precipitation polymerization

Sugiura,

Imai,

Oaki

2024

Nanoscale Adv.

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“…There have been a series of studies on the synthesis of the PPy in a form of colloidal particles. , The particles in a colloidal dimension have a large specific surface area, and it is possible to enhance surface-related functionalities. The application of such PPy nanoparticles extend to adsorbents, , particulate stabilizers for liquid marbles, − and synthetic mimics for cosmic dust and micrometeorites .…”

Section: Introductionmentioning

confidence: 99%

Colloidally Stable Polypyrrole Nanoparticles Synthesized by Surfactant-Free Coupling Polymerization

Atsuta,

Takeuchi,

Shioda

et al. 2023

Langmuir

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Surfactant-free polypyrrole (PPy) nanoparticles, which were colloidally stable in aqueous medium, were successfully synthesized by coupling polymerization of pyrrole using Fe(NO 3 ) 3 solids in the absence of any colloidal stabilizer. The pyrrole monomers were gradually supplied from the vapor phase, and the coupling reaction of the monomers could proceed to generate PPy in a water medium. The resulting PPy nanoparticles were extensively characterized in terms of diameter, bulk chemical composition, surface chemistry, and colloidal stability by dynamic light scattering, electron microscopy, elemental microanalysis, Fourier transform infrared spectroscopy, Raman spectroscopy, electrophoresis, and X-ray photoelectron spectroscopy. The characterization results indicated that the PPy nanoparticles can be colloidally stable based on the electrostatic stabilization mechanism due to cationic charges generated on the PPy molecules by doping during the polymerization. General chemical oxidative polymerization in aqueous medium using the Fe(NO 3 ) 3 oxidant without a colloidal stabilizer as a control experiment resulted in generation of atypical PPy aggregates with over a micrometer size, indicating that the polymerization at low ionic strength is essential for colloidal particle formation. Finally, it was demonstrated that the PPy nanoparticles worked as a surfactant-free black-colored particulate emulsifier by adsorption at the oil−water interface to stabilize Pickering-type oil-in-water emulsions.

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Synthesis of Conductive Polymer-based Composite Particles

Cited by 4 publications

References 131 publications

Nitrogen-Containing Carbon Tubes Fabricated by Light Irradiation

Nitrogen-Containing Carbon Tubes Fabricated by Light Irradiation

Morphology and size control of an amorphous conjugated polymer network containing quinone and pyrrole moieties via precipitation polymerization

Colloidally Stable Polypyrrole Nanoparticles Synthesized by Surfactant-Free Coupling Polymerization

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