Electrorheological characteristics of conducting polypyrrole/swollen MCM-41 nanocomposite

Fang, F.; Cho, Min Seong; Choi, Hyoung Jin; Yoon, Sang Soon; Ahn, Wha‐Seung

doi:10.1016/j.jiec.2007.08.008

Cited by 17 publications

(4 citation statements)

References 21 publications

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“…Fang et al [ 59 , 60 ] reported another conducting polymer of PPy-modified specific MCM-41 composites. Compared to the conventional method of synthesizing MCM-41, in which aqueous colloidal silica in a tetraethyl ammonium hydroxide solution was combined with a cethyltrimethyl ammonium chloride solution, the swollen MCM-41 with a large pore diameter was prepared [ 61 ].…”

Section: Fabrication Of Electro-responsive Mesoporous Materialsmentioning

confidence: 99%

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Electric Field-Responsive Mesoporous Suspensions: A Review

2015

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This paper briefly reviews the fabrication and electrorheological (ER) characteristics of mesoporous materials and their nanocomposites with conducting polymers under an applied electric field when dispersed in an insulating liquid. Smart fluids of electrically-polarizable particles exhibit a reversible and tunable phase transition from a liquid-like to solid-like state in response to an external electric field of various strengths, and have potential applications in a variety of active control systems. The ER properties of these mesoporous suspensions are explained further according to their dielectric spectra in terms of the flow curve, dynamic moduli, and yield stress.

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Section: Fabrication Of Electro-responsive Mesoporous Materialsmentioning

confidence: 99%

“…Copyright Elsevier, 2000); ( c ) SEM images of copolyaniline (COPANI)/MCM-41 particles (Reproduced with permission from [ 58 ]. Copyright Elsevier, 2009); ( d ) PPy/MCM-41 particles (Reproduced with permission from [ 60 ]. Copyright Elsevier, 2008).…”

Section: Characterizationmentioning

confidence: 99%

Electric Field-Responsive Mesoporous Suspensions: A Review

2015

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“…Then, Block et al reported semi-conducting polymers as anhydrous ER materials [ 22 , 23 ], which overcame the negative effect of water. After that, anhydrous ER materials won great interest from researchers and diverse kinds of anhydrous ER materials were developed, such as biopolymers, dielectric inorganics and hydrophobic polyelectrolytes [ 24 , 25 , 26 , 27 ]. Not only pure materials were studied, but also dual- or multi-component composite materials attracted considerable attention owing to the combined advantages of each component.…”

Section: Introductionmentioning

confidence: 99%

The Electric Field Responses of Inorganic Ionogels and Poly(ionic liquid)s

et al. 2020

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Ionic liquids (ILs) are a class of pure ions with melting points lower than 100 °C. They are getting more and more attention because of their high thermal stability, high ionic conductivity and dielectric properties. The unique dielectric properties aroused by the ion motion of ILs makes ILs-contained inorganics or organics responsive to electric field and have great application potential in smart electrorheological (ER) fluids which can be used as the electro-mechanical interface in engineering devices. In this review, we summarized the recent work of various kinds of ILs-contained inorganic ionogels and poly(ionic liquid)s (PILs) as ER materials including their synthesis methods, ER responses and dielectric analysis. The aim of this work is to highlight the advantage of ILs in the synthesis of dielectric materials and their effects in improving ER responses of the materials in a wide temperature range. It is expected to provide valuable suggestions for the development of ILs-contained inorganics and PILs as electric field responsive materials.

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“…If the nanolayers of clays are randomly dispersed in matrix, then the structure is called an exfoliated structure. If MMT clay is not given any surface treatment and added in matrix polymer then no nanolayer dispersions of clay takes place and it acts as a micron scale filler particle in polymer matrix with mere improvement in properties [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%