A Commentary on “Synthesis and electrorheological properties of polyaniline‐Na+‐montmorillonite suspensions” by J. W. Kim, S. G. Kim, H. J. Choi, M. S. Jhon (Macromol. Rapid Commun. 1999, 20, 450–452)

Yoshimoto, Shoji

doi:10.1002/marc.200500181

Cited by 36 publications

(20 citation statements)

References 10 publications

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“…124 Therefore, conducting polymer/clay nanocomposite particles were fabricated and undergone for the ER characterizations. [125][126][127][128] In a typical experiment, PANI was intercalated within the layer of clay via emulsion polymerization. 125,129,130 The XRD patterns of the interlayer spacing of the clay are represented in Figure 9, in which the PANI/clay nanocomposites were synthesized via an emulsion polymerization.…”

Section: Introductionmentioning

confidence: 99%

Electrorheologically intelligent polyaniline and its composites

2010

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Electrorheological (ER) fluids are generally composed of electrically polarizable inorganic or organic particles dispersed in insulating oils. These materials are intelligent/smart materials in that they are capable of changing their state from liquid-like to solid-like very quickly under an applied electric field. This feature article reviews the literature regarding the fabrication of conducting polyaniline (PANI) and PANI composite particles, their ER performance, as well as their chemical and physical characteristics of morphology and crystal structure. The ER behavior of these intelligent materials was also analyzed using a range of rheological equations of state and their dielectric properties.

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Section: Introductionmentioning

confidence: 99%

Electrorheologically intelligent polyaniline and its composites

2010

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“…[10] An ER fluid is a suspension consisting of dielectric particles in an insulating oil that has a low dielectric constant and a low viscosity. [11][12][13] The applied electric field induces chain-like structures of particles in the suspending fluid, which then changes from a liquid-like to a solid-like phase due to interactions among the particles, which can be polarized in the order of milliseconds. [14][15][16] As a result, the apparent viscosity of the ER fluid increases tremendously under an applied electric field.…”

Section: Introductionmentioning

confidence: 99%

Electrorheology of Multiwalled Carbon Nanotube/Poly(methyl methacrylate) Nanocomposites

Park

Cho

Lim

et al. 2005

Macromol. Rapid Commun.

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Summary: Multiwalled carbon nanotube (MWNT) nanocomposites dispersed in a poly(methyl methacrylate) (PMMA) matrix were prepared via suspension polymerization, in which radicals induced on the outer wall of the MWNTs by 2,2′‐azoisobutyronitrile initiate the grafting of PMMA. The synthesized MWNT/PMMA nanocomposite particles were found to have a spherical shape and exhibit a high electrical conductivity, mainly as a result of the carbon nanotubes. A suspension was prepared with MWNT/PMMA particles in insulating silicone oil and its electrorheological properties were investigated by controlling applied direct current (DC) electric field strengths.Flow curve possessing a region analogous to the coexistence curve.magnified imageFlow curve possessing a region analogous to the coexistence curve.

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“…[20] Nanocomposites of conducting polymers and inorganic materials have also been used for ER fluids. [21][22][23][24] PANI nanocomposites with clay [25] or MCM-41 [26] are thermally stable and relatively easy to synthesize. These typical conducting polymers and modified particles are based on a p-conjugated electron system in the polymer backbone.…”

Section: Full Papermentioning

confidence: 99%

Dispersion‐Polymerized Carbon Nanotube/Poly(methyl methacrylate) Composite Particles and their Electrorheological Characteristics

Kim

Lim

Park

et al. 2007

Macro Chemistry & Physics

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An in situ dispersion polymerization method was adopted to synthesize particulate composites of MWNTs and PMMA, mainly for the investigation of their electrorheological characteristics. The morphology of the PMMA microparticles synthesized in the presence of the MWNTs was examined by both SEM and TEM, showing that the MWNTs were not only grafted onto the surface of the PMMA microbeads, but were also embedded inside the synthesized microbeads. The synthesized MWNT/PMMA particulate composites were also characterized by zeta‐potential measurements and TGA for electric and thermal stability studies, respectively. A suspension of the MWNT/PMMA microparticles dispersed in silicone oil was found to show enhanced electrorheological properties on the increase of shear stresses when subjected to an external electric field, exhibiting high yield stresses despite the tiny amount of the MWNT associated.magnified image

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A Commentary on “Synthesis and electrorheological properties of polyaniline‐Na⁺‐montmorillonite suspensions” by J. W. Kim, S. G. Kim, H. J. Choi, M. S. Jhon (Macromol. Rapid Commun. 1999, 20, 450–452)

Cited by 36 publications

References 10 publications

Electrorheologically intelligent polyaniline and its composites

Electrorheologically intelligent polyaniline and its composites

Electrorheology of Multiwalled Carbon Nanotube/Poly(methyl methacrylate) Nanocomposites

Dispersion‐Polymerized Carbon Nanotube/Poly(methyl methacrylate) Composite Particles and their Electrorheological Characteristics

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