Polypyrrole micro/nanostructures and their soft materials in versatile forms: construction and applications

Wang, Shi; Chen, Yukai; Hu, Boyuan; Wang, Yong; Jing, Xinli; Li, Yu

doi:10.1039/d3qm00826f

Cited by 13 publications

(2 citation statements)

References 136 publications

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“…23,24 However, pure PVA hydrogels have weak mechanical strength, limited functionality, and poor conductivity. 25 While the introduction of materials like polypyrrole, 26 polyaniline, 27 ammonium sulfate ions, 28 graphene oxide, 29,30 and clay 31 enhances PVA hydrogel performance, it often sacrifices environmental friendliness. Inspired by plants, phytic acid and tannic acid are biomacromolecules derived from plants, serving as rich, non-toxic, and environmentally friendly biomass materials.…”

Section: Introductionmentioning

confidence: 99%

Phytic acid/tannic acid reinforced hydrogels with ultra-high strength for human motion monitoring and arrays

Xie,

Qin,

Zeng

et al. 2024

Soft Matter

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Section: Introductionmentioning

confidence: 99%

Phytic acid/tannic acid reinforced hydrogels with ultra-high strength for human motion monitoring and arrays

Xie,

Qin,

Zeng

et al. 2024

Soft Matter

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“…This unique feature is attributable to the specific nature of the embedded microparticles, which react to magnetic field variations, thereby transforming the physical properties of the composite. This adaptability and responsiveness to external stimuli are crucial characteristics that open up new possibilities in the development of adaptive and responsive material systems [10,29]. Such duality in response mechanisms significantly emphasizes the potential of PPy-based composites, paving the way for their application in a broad spectrum of advanced smart materials.…”

Section: Introductionmentioning

confidence: 99%

Electrorheological and magnetorheological properties of liquid composites based on polypyrrole nanotubes/magnetite nanoparticles

Bica,

Mircea Anitas,

Sedlacik

et al. 2024

Smart Mater. Struct.

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This research presents an in-depth exploration of the electrical and magnetic properties of a Polypyrrole Nanotubes/Magnetite Nanoparticles (PPyM) material embedded in a silicone oil matrix. A key finding of our study is the dual nature of the composite, i.e. it exhibits a behaviour akin to \textit{both} electro- and magnetorheological suspensions. This unique duality is evident in its response to varying electric and magnetic field intensities. Our study focuses on examining the electrical properties of the composite, including its dielectric permittivity and dielectric loss factor. Additionally, we conduct an extensive analysis of its rheological behavior, with a particular emphasis on how its viscosity changes in response to electromagnetic stimuli. This property notably underscores the material's dual-responsive nature. Employing a custom experimental design, we integrate the composite into a passive electrical circuit element subjected to alternating electric fields. This methodological approach allows us to precisely measure the material's response in terms of resistance, capacitance, and charge under different field conditions. Our findings reveal substantial changes in the material's electrical conductivity and rheological characteristics, which are significantly influenced by the intensity of the applied fields. These results enhance the understanding of electro-magnetorheological properties of PPyM-based magnetic composites, and also highlight their potential in applications involving smart materials. The distinct electrical, magnetic and rheological modulation capabilities demonstrated by this composite render it as promising candidate for advanced applications. These include sensory technology, actuation systems, and energy storage solutions.

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Interface Charge Characteristics in Polymer Dielectric Contacts: Analysis of Acoustic Approach and Probe Microscopy

Wang

et al. 2023

Adv Materials Inter

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Interfaces are essential components in polymer contact systems, which widely exist in electronic devices and power equipment. Interface charge originating from the mismatch of the electronic structure in interfaces is one of the key issues to modify the device performance due to its multifunctional migration and accumulation behaviors. Hence, the detection and analysis of the interface charge characteristics are of great importance to deeply understand the polymer contact system in various devices. This paper presents an overview of recent research progress in the interface charge properties at dielectric interfaces. Based on the theoretical analysis of the MWS polarization and electronic localized states, two typical approaches of discussing the interface charges from micrometer to millimeter are mainly studied. Acoustic method is prevalent in detecting the space charge in various dielectrics. However, owing to its limited resolution (several µm), it is difficult to clarify the charge distributions at the interface with a micro‐scale. Probe microscopy presents a promising technique due to its flexible surface potential detection at a submicron scale. The challenges and prospects of acoustic and probe microscopy methods are discussed in this paper. The advanced techniques of interface charges can promote the development of new energy electronic devices.

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Polypyrrole micro/nanostructures and their soft materials in versatile forms: construction and applications

Abstract: With arousing research interest in the fields of advanced materials, energy conservation and environment protection, polypyrrole (PPy), as a widely studied conducting polymer, has exuded new vitality for a lot...

Cited by 13 publications

References 136 publications

Phytic acid/tannic acid reinforced hydrogels with ultra-high strength for human motion monitoring and arrays

Phytic acid/tannic acid reinforced hydrogels with ultra-high strength for human motion monitoring and arrays

Electrorheological and magnetorheological properties of liquid composites based on polypyrrole nanotubes/magnetite nanoparticles

Interface Charge Characteristics in Polymer Dielectric Contacts: Analysis of Acoustic Approach and Probe Microscopy

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