Conducting polyaniline-wrapped sepiolite composite and its stimuli-response under applied electric fields

Jang, Dae Sung; Choi, Hyoung Jin

doi:10.1016/j.colsurfa.2015.01.004

Cited by 15 publications

(13 citation statements)

References 50 publications

(52 reference statements)

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“…1 p-Phenylenediamine is oxidized with p-benzoquinone to 2,5(di-pphenylenediamine)-1,4-benzoquinone (1). After the ''keto-enol'' rearrangement, the resulting imine nitrogen atoms may become protonated with (methanesulfonate) acid (HA) to corresponding salt (2).…”

Section: Electrorheological Behaviormentioning

confidence: 99%

The observation of a conductivity threshold on the electrorheological effect of p-phenylenediamine oxidized with p-benzoquinone

et al. 2015

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Section: Electrorheological Behaviormentioning

confidence: 99%

The observation of a conductivity threshold on the electrorheological effect of p-phenylenediamine oxidized with p-benzoquinone

et al. 2015

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“…17,18 Composites of polyaniline have been developed to extend its application. [19][20][21] Grafting of PANI has also been carried out at different bases to develop nanohybrids such as; chitosan-g-polyaniline, 22 gum arabic-g-polyaniline 23 and xanthan gum-g-polyaniline. 24 Structural modification of guar gum with PANI through chemical graft copolymerization has also been carried out for intended application.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Raza

Nasir

Tahir

et al. 2020

J of Applied Polymer Sci

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Polyaniline (PANI) grafted conducting nanohybrids are successfully synthesized by emulsion graft polymerization. Maximum grafting of 644% is obtained on sepiolite at optimized concentrations and reaction conditions. The Fourier transform infrared (FT‐IR) spectra of sepiolite grafted polyaniline (MS‐g‐PANI) nanohybrid revealed the presence of stretching vibrations of C=C bonds of polyaniline at 1580 and 1490 cm−1 along with the characteristic peaks of sepiolite. Increased thermal stability of the nanohybrid is observed with the increase in polyaniline grafting. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to study the structural changes caused by grafting. A progressive increase in electrical conductivity is observed with the increase in grafting yield. Maximum electrical conductivity of 0.427 Scm−1 is observed in the nanohybrid having 644% grafting. 24.2 dB (>99% attenuation) EMI shielding effectiveness has been exhibited by the developed nanohybrids in X‐band frequency range.

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“…Nanofibrous clay materials, such as sepiolite (SPL), palygorskite (Pal), and attapulgite (ATP), were also used as the core of ER materials with a PANI coating. Jang et al [74] synthesized a PANI-wrapped sepiolite composite (PANI/SPL) by in situ polymerization without a surfactant and adopted it as an ER material. The mechanism for the fabrication of PANI-coated clay was considered to be the electrostatic interactions between the clay and anilinium salt, as shown in Scheme 3.…”

Section: Inorganic Corementioning

confidence: 99%

“…(Range between red arrows shows the thickness of PANI/PSS) (Lee et al [70], © Elsevier, 2013); (c) Fe3O4/PANI (Sim et al [72], © BME-PT, 2015); (d) flower-like Fe2O3/PANI (Tian et al [73], © Elsevier, 2016); (e,f) SPL and PANI/SPL (Jang et al [74], © Elsevier, 2015); (g,h) Pal and Pal/PANI (The red arrows point PANI) (Chae et al [76], © Elsevier, 2007).…”

Section: Figure 2 Morphologies Of Pani Coated Inorganic Nanoparticlementioning

confidence: 99%

Nanoparticles Functionalized by Conducting Polymers and Their Electrorheological and Magnetorheological Applications

et al. 2020

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Conducting polymer-coated nanoparticles used in electrorheological (ER) and magnetorheological (MR) fluids are reviewed along with their fabrication methods, morphologies, thermal properties, sedimentation stabilities, dielectric properties, and ER and MR characteristics under applied electric or magnetic fields. After functionalization of the conducting polymers, the nanoparticles exhibited properties suitable for use as ER materials, and materials in which magnetic particles are used as a core could also be applied as MR materials. The conducting polymers covered in this study included polyaniline and its derivatives, poly(3,4-ethylenedioxythiophene), poly(3-octylthiophene), polypyrrole, and poly(diphenylamine). The modified nanoparticles included polystyrene, poly(methyl methacrylate), silica, titanium dioxide, maghemite, magnetite, and nanoclay. This article reviews many core-shell structured conducting polymer-coated nanoparticles used in ER and MR fluids and is expected to contribute to the understanding and development of ER and MR materials.

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Conducting polyaniline-wrapped sepiolite composite and its stimuli-response under applied electric fields

Cited by 15 publications

References 50 publications

The observation of a conductivity threshold on the electrorheological effect of p-phenylenediamine oxidized with p-benzoquinone

The observation of a conductivity threshold on the electrorheological effect of p-phenylenediamine oxidized with p-benzoquinone

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Nanoparticles Functionalized by Conducting Polymers and Their Electrorheological and Magnetorheological Applications

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