Electrorheological properties of poly(acene quinone) radical suspensions

Investigation of vibration damping properties of electroactive polyanthracene/silicone oil dispersions

“…PAQR is a type of ladder polymer with polar groups such as carbonyl and hydroxyl. The reported studies have shown that PAQRs have high dielectric constant (e 0 = 3-5) and ER activity with high yield stress of t y = ;200 Pa at a shear rate ( _ g) of 1 s 21 and electric field strength (E) of 3 kV/mm conditions (Choi et al, 1997;Wang et al, 2016). The reported results on PAQR can support the hypothesis of this research that PAT can be a good candidate for a dry-based ER active smart material having vibration damping capability and long term industrial applicability.…”

Hysteresis Behaviors of Poly (Naphthalene Quinone) Radical Electrorheological Fluid

“…Particle shape of PNQR was irregular and laminar, which was observed using a scanning electron microscope (SEM). The evidence of polymerization of this polymer was observed only from FT-IR spectra, thermal gravity analysis (TGA), and density data 8 .…”

Syntheses and polymerizations of (E)-2-styrylfurans and an investigation of their electrorheological properties

“…In both cases a linear increase of current density was observed with increasing applied electric field. It is usually reported that the current passing through ER fluids obeys a power series relation with respect to the applied voltage [25,26], although linear current/applied electric field strength relations have been reported [19]. The current drawn by the fluid based on Poly-3Fe obeyed the equation I = V × 3.73 × 10 −1 µA cm −2 (correlation coefficient 0.997) and was higher than that for the fluid prepared from Poly-3Cu, I = V × 8.83 × 10 −2 µA cm −2 (correlation coefficient 0.999), although both fall within the range of available ER materials [23].…”