Swelling-diffusion-interfacial polymerized core-shell typed polystyrene/poly(3, 4-ethylenedioxythiophene) microspheres and their electro-responsive characteristics

An, Ji Su; Moon, Il Jae; Kwon, Seung Hyuk; Choi, Hyoung Jin

doi:10.1016/j.polymer.2017.03.027

Cited by 20 publications

(8 citation statements)

References 45 publications

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“…On the other hand, the chain-like structure will be interrupted by the shear flow in the direction perpendicular to the electric field and reorganized by electrostatic interactions. In other words, there is competition for hydrodynamic interaction and electrostatic interactions in the ER fluid system [ 137 ]. The behavior of the shear stress under an applied electric field is dependent on the balance between the hydrodynamic and electrostatic interactions.…”

Section: Electrorheological Characteristicsmentioning

confidence: 99%

Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology

Dong¹,

Han²,

Choi³

2018

Polymers

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Functional core-shell-structured particles have attracted considerable attention recently. This paper reviews the synthetic methods and morphologies of various electro-stimuli responsive polyaniline (PANI)-coated core-shell-type microspheres, including PANI-coated Fe 3 O 4 , SiO 2 , Fe 2 O 3 , TiO 2 , poly(methyl methacrylate), poly(glycidyl methacrylate), and polystyrene along with their electrorheological (ER) characteristics when prepared by dispersing these particles in an insulating medium. In addition to the various rheological characteristics and their analysis, such as shear stress and yield stress of their ER fluids, this paper summarizes some of the mechanisms proposed for ER fluids to further understand the responses of ER fluids to an externally applied electric field.

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Section: Electrorheological Characteristicsmentioning

confidence: 99%

Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology

Dong¹,

Han²,

Choi³

2018

Polymers

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“…An et al [87] synthesized PS/PEDOT microspheres as an ER material via a swelling-diffusion interfacial polymerization technique, providing a uniformly coated morphology and structure. The PS/PEDOT shows a mean diameter of approximately 1 µm with a PEDOT thickness of approximately 10 nm (Figure 4a,b).…”

Section: Other Conducting Polymersmentioning

confidence: 99%

“…TEM images of (a,b) PS and PS/PEDOT (An et al[87], © Elsevier, 2007); (c,d) nanorod-TiO 2 and nanorod-TiO 2 /PEDOT (Eroal et al[88], © The Royal Society of Chemistry, 2015); (e,f) SiO 2 and PEDOT/SiO 2 (Park et al[89], © Elsevier, 2018); (g,h) nanocube-TiO 2 and nanocube-TiO 2 /P3OT (Sever et al[90], © Elsevier, 2015).…”

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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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“…Meanwhile poly(3,4-ethylenedioxythiophene)(PEDOT):poly-(styrenesulfonic acid) as a derivative of polythiophene, has attracted considerable attention because of its several advantages as a conducting polymer, such as processability in aqueous solutions, and better thermal and structural stability [ 85 ]. An et al [ 86 ] fabricated core/shell typed polystyrene (PS)/PEDOT microspheres and reported their ER behaviors under an electrical field. On the other hand, Erol et al [ 87 ] synthesized core/shell typed nano-rods with a titania core and conducting polymeric PEDOT shell.…”

Section: Polymeric Er Materialsmentioning

confidence: 99%

Smart and Functional Conducting Polymers: Application to Electrorheological Fluids

Han

Choi

2018

Molecules

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Electro-responsive smart electrorheological (ER) fluids consist of electrically polarizing organic or inorganic particles and insulating oils in general. In this study, we focus on various conducting polymers of polyaniline and its derivatives and copolymers, along with polypyrrole and poly(ionic liquid), which are adopted as smart and functional materials in ER fluids. Their ER characteristics, including viscoelastic behaviors of shear stress, yield stress, and dynamic moduli, and dielectric properties are expounded and appraised using polarizability measurement, flow curve testing, inductance-capacitance-resistance meter testing, and several rheological equations of state. Furthermore, their potential industrial applications are also covered.

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Swelling-diffusion-interfacial polymerized core-shell typed polystyrene/poly(3, 4-ethylenedioxythiophene) microspheres and their electro-responsive characteristics

Cited by 20 publications

References 45 publications

Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology

Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology

Nanoparticles Functionalized by Conducting Polymers and Their Electrorheological and Magnetorheological Applications

Smart and Functional Conducting Polymers: Application to Electrorheological Fluids

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