Smart and functional conducting polymers: application to electrorheological fluids

Q Lu, WJ Han, HJ Choi - Molecules, 2018 - mdpi.com
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 …

Stimuli-responsive polymers and colloids under electric and magnetic fields

WL Zhang, HJ Choi - Polymers, 2014 - mdpi.com
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 …

Silica-graphene oxide hybrid composite particles and their electroresponsive characteristics

WL Zhang, HJ Choi - Langmuir, 2012 - ACS Publications
Silica-graphene oxide (Si-GO) hybrid composite particles were prepared by the hydrolysis of
tetraethyl orthosilicate (TEOS) in the presence of hydrophilic GO obtained from a modified …

Pickering emulsion-fabricated polystyrene–graphene oxide microspheres and their electrorheology

SD Kim, WL Zhang, HJ Choi - Journal of Materials Chemistry C, 2014 - pubs.rsc.org
Graphene oxide (GO) was used as a solid surfactant, and core–shell structured polystyrene
(PS)–GO microspheres were fabricated using the Pickering emulsion polymerization …

Modeling and analysis of electrorheological suspensions in shear flow

YP Seo, Y Seo - Langmuir, 2012 - ACS Publications
A model capable of describing the flow behavior of electrorheological (ER) suspensions
under different electric field strengths and over the full range of shear rates is proposed …

Development of Novel Colorful Electrorheological Fluids

S Jekal, J Kim, Q Lu, DH Kim, J Noh, HY Kim, MJ Kim… - Nanomaterials, 2022 - mdpi.com
Herein, the electrorheological (ER) performances of ER fluids were correlated with their
colors to allow for the visual selection of the appropriate fluid for a specific application using …

Monte Carlo simulations of shear‐thinning flow in geological fractures

A Lenci, Y Méheust, M Putti… - Water Resources …, 2022 - Wiley Online Library
The hydraulic behavior of fractured rocks under shear‐thinning flow is a challenging topic of
interest in several fields, related either to environmental remediation or to natural resources …

Celebrating Soft Matter's 10th Anniversary: Stimuli-responsive Pickering emulsion polymerized smart fluids

SH Piao, SH Kwon, WL Zhang, HJ Choi - Soft Matter, 2015 - pubs.rsc.org
The Pickering emulsion process is an important and interesting way of forming hybrid soft
matter particles stabilized by solid particles as surfactants instead of the extensive use of …

Poly (diphenylamine)/polyaniline core/shell composite nanospheres synthesized using a reactive surfactant and their electrorheology

WJ Han, JH Lee, HJ Choi - Polymer, 2020 - Elsevier
Relatively monodispersed poly (diphenylamine)/polyaniline (PDPA/PANI) core/shell
composite nanospheres were fabricated by an oxidative polymerization, both in the …

Facile and fast synthesis of polyaniline-coated poly (glycidyl methacrylate) core–shell microspheres and their electro-responsive characteristics

WL Zhang, SH Piao, HJ Choi - Journal of colloid and interface science, 2013 - Elsevier
Electro-responsive core–shell structured particles were fabricated in two steps. In the first
step, a spherical and monodisperse poly (glycidyl methacrylate)(PGMA) core was prepared …