Electrorheological properties of new mesoporous material with conducting polypyrrole in mesoporous silica

Cheng, Qilin; Pavlı́nek, Vladimı́r; Lengálová, Anežka; Li, Chunzhong; Belza, Tomáš; Sáha, Petr

doi:10.1016/j.micromeso.2006.03.039

Cited by 58 publications

(28 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Encapsulation of the conducting polymer can improve the mechanical, thermal, and chemical stabilities of the assemblies, and possibly allowing individual molecular wires to be addressed. The semiconducting polypyrrole was incorporated in the channels [34][35][36]. PPy confined in the channels was confirmed by different experiment techniques, and the basic characteristics of mesoporous materials are retained after incorporation of PPy and the structure of the channels is not destroyed (Fig.…”

Section: Confined Assembly and Application Of Nanocompositesmentioning

confidence: 80%

Structure controlling and process scale-up in the fabrication of nanomaterials

2010

Front. Chem. Eng. China

Self Cite

View full text Add to dashboard Cite

Nanotechnology is already having a significant commercial impact, and will very certainly have a much greater impact in the future. The research on process engineering and scale-up will be very important for the commercial production and application of nanomaterials, because the properties and structure of nanomaterials are not only determined by the nucleation and growth process, but also strongly affected by the engineering properties, such as the mixing, the heat and mass transfer, and also the distribution of temperature, concentration, etc. This paper will present some research work in our laboratory on the fabrication of nanomaterials. Based on the chemical engineering principle and methods, many kinds of novel nanomaterials can be synthesized and their structure can be easily controlled through adjusting the parameters of the fluid mixing, and the distribution of temperature, residence time and concentration, etc. By using the micro-mixing, heat and mass transfer and reaction control methods, the host-guest nanocomposites have been assembled and assumed as the novel electroanalytical sensing nanobiocomposite materials. Based on the principles of chemical engineering, the manufacturing technologies for magnetic powders, calcium carbonate, and titanium dioxide have been developed for commercial-scale production, and the largest production scale has reached 15 kt/year.

show abstract

Section: Confined Assembly and Application Of Nanocompositesmentioning

confidence: 80%

Structure controlling and process scale-up in the fabrication of nanomaterials

2010

Front. Chem. Eng. China

Self Cite

View full text Add to dashboard Cite

show abstract

“…ER fluids based on particles composed of conducting PPy or rigid-rod-like MEPEs intercalated in mesoporous silicate (SBA-15) exhibit a notable ER effect [66,67]. The inner channels of mesoporous silica (MCM-41) were also modified by high polarizable materials, such as PANI, PPy or triethanolamine, and showed enhanced ER behaviors [68][69][70][71].…”

Section: Morphologymentioning

confidence: 99%

Stimuli-Responsive Polymers and Colloids under Electric and Magnetic Fields

Zhang¹,

Choi

2014

Polymers

View full text Add to dashboard Cite

Electrorheological (ER) and magnetorheological (MR) suspensions undergo a reverse phase transition from a liquid-like to solid-like state in response to an external electric or magnetic field, respectively. This paper briefly reviews various types of electro-or magneto-responsive materials from either polymeric or inorganic and hybrid composite materials. The fabrication strategies for ER/MR candidates and their ER/MR characteristics (particularly for ER fluids) are also included.

show abstract

“…Various ER materials including poly(p-phenylene) 36 and mesoporous MCM-41 28 were reported to obey this universal yield stress equation quite well. The experimental data of PPy/OMMT nanocomposite was fully fitted with eq.…”

mentioning

confidence: 96%

“…Interesting behavior of the plateau shear stress (s) with increasing shear rate up to a critical shear rate ( _ c crit ) has been reported for various ER materials. [27][28][29] The _ c crit is a transition point of shear rate ( _ c) at which the fluid begins to exhibit pseudo-Newtonian behavior (s increases with _ c). In this high shear rate range, the particle chains appear to be broken by the shear.…”

mentioning

confidence: 99%

Electrorheological characteristics of solvent‐cast polypyrrole/clay nanocomposite

Park

Lim

et al. 2009

J of Applied Polymer Sci

View full text Add to dashboard Cite

A solvent-casting method was applied to prepare intercalated polypyrrole (PPy)/organoclay nanocomposite for its electrorheological (ER) application under an applied electric field when dispersed in silicone oil. Soluble PPy was synthesized using sodium di(2-ethylhexyl) sulfosuccinate (NaDEHS) as a doping agent at first, and its chemical structure and thermal property were examined using NMR and TGA, respectively. Insertion of the soluble PPy chain into an interlayer of the organoclay was confirmed by a X-ray diffraction and its morphology was also examined by both SEM and TEM. Its ER property was examined under an applied electric field, regarding flow curve and universal yield stress.

show abstract

Electrorheological properties of new mesoporous material with conducting polypyrrole in mesoporous silica

Cited by 58 publications

References 47 publications

Structure controlling and process scale-up in the fabrication of nanomaterials

Structure controlling and process scale-up in the fabrication of nanomaterials

Stimuli-Responsive Polymers and Colloids under Electric and Magnetic Fields

Electrorheological characteristics of solvent‐cast polypyrrole/clay nanocomposite

Contact Info

Product

Resources

About