Strain-hardening in the oscillatory shear deformation of a dedoped polyaniline electrorheological fluid

Hiamtup, Piyanoot; Sirivat, Anuvat; Jamieson, A. M.

doi:10.1007/s10853-009-4189-x

Cited by 33 publications

(32 citation statements)

References 27 publications

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“…• C. 7 In this work, the specific electrical conductivities of conductive particles that were added into the chloroprene matrix remained the same. The PANI large particles were required to be dedoped with NH 4 OH and then doped again with HCl to adjust the electrical conductivity.…”

Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 90%

“…In the case of polymer blends with 0.01 vol% of PANI, the storage modulus increases suddenly after turning on the electric field, due to the interactions between the charges in the elastomers and conductive particles. 7 From Table III, the W:0.01% PANI nano system requires a longer induction time and longer recovery time than the W:0.01% PANI large system. The W:0.01% PANI nano system has an induction time of 195 s and a recovery time of 161 s, whereas the W:0.01% PANI large system has an induction time of 105 s and a recovery time of 144 s. The PANI nano particles have smaller sizes and higher surface areas.…”

Section: Time Dependence Of the Electrorheological Responsementioning

confidence: 98%

“…The PANI large particles were synthesized following the procedures of Hiamtup et al 7 and Cao et al 19 using aniline as the monomer and ammonium persulfate as the initiator. 0.98 g of ammonium persulfate was dissolved into 10 mL of 0.1 M HCl solution and added dropwise at the rate of 1 mL/min into the mixture solution between 5.5 g of the aniline monomer and 100 mL of 0.1 M HCl.…”

Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 99%

“…• C under vacuum for 24 h. 7 The dedoped PANI large particles were again doped by immersing in the HCl solution. The mixture was stirred at 0…”

Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 99%

“…This is due to the interactions between charges or the dipole moments within the elastomers. 7 As the electric field is removed, the interactions between charges almost vanish and the storage modulus decreases. In the first cycle, the response of chloroprene W is not completely reversible.…”

Section: Time Dependence Of the Electrorheological Responsementioning

confidence: 99%

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Highly Electroresponsive Polymer Blends of Polyaniline Nanoparticles and Chloroprene Rubbers

Kunanuruksapong

Sirivat

2012

Adv Polym Technol

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ABSTRACT:Polymer blends between polyaniline (PANI) nano/large particles and chloroprene rubbers were fabricated and investigated as the electroresponsive materials. The effects of the chloroprene type, particle size, particle concentration, and electric field strength on the electrical properties, the storage modulus sensitivity, and the dielectrophoresis force were studied. Chloroprene W provides the highest storage modulus sensitivity at 55% and is chosen as the matrix. The electrical conductivity and the dielectric constant of the blends increase with an increasing concentration of PANI nano/large particles. The storage modulus of the blends (with and without the electric field) increases linearly with the PANI content. The maximum storage modulus sensitivities of the blends with PANI nano and large particles at E = 2 kV/mm are 73% at 0.01 vol% and 63% at 0.1 vol%, respectively. The dielectrophoresis force of all specimens increases monotonically with increasing electric field strength. The blends with PANI-nano and large particles at 0.01 vol% generate higher dielectrophoresis forces than those of the pure chloroprene W. For the 0.1 vol% of PANI nano and large particles, the resultant deflection angle and dielectrophoresis forces are lower than those of the 0.01 vol% systems and the pure chloroprene W, presumably due to the diminishing resultant dipole moments generated with increasing PANI concentration. C 2012 Wiley

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Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 90%

Section: Time Dependence Of the Electrorheological Responsementioning

confidence: 98%

Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 99%

“…• C under vacuum for 24 h. 7 The dedoped PANI large particles were again doped by immersing in the HCl solution. The mixture was stirred at 0…”

Section: Synthesis Of Pani Nano and Large Particlesmentioning

confidence: 99%

Section: Time Dependence Of the Electrorheological Responsementioning

confidence: 99%

See 3 more Smart Citations

Highly Electroresponsive Polymer Blends of Polyaniline Nanoparticles and Chloroprene Rubbers

Kunanuruksapong

Sirivat

2012

Adv Polym Technol

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Rectangular‐Shaped Polyaniline Tubes Covered with Nanorods and their Electrorheology

Lee

Kim

Fang

et al. 2011

Macro Chemistry & Physics

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Facile Fabrication of Chemically Grafted Graphene Oxide–Poly(glycidyl methacrylate) Composite Microspheres and Their Electrorheology

Zhang

Choi

Seo

2013

Macro Chemistry & Physics

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Front Cover: The energy levels of platinum(II) polyyne polymers are signifi cantly lowered by formal cycloadditionretroelectrocyclization reactions with tetracyanoethylene (TCNE). The TCNE-adducted platinum(II) polyyne polymers are thus employed as an n-type semiconductor in bulkheterojunction solar cells.Core-shell structured graphene oxidewrapped amine-modifi ed poly(glycidyl methacrylate) composite microspheres are fabricated through an amine-epoxide/ carboxyl chemical reaction and then dispersed in silicone oil for an electrorheological fl uid. When an electric fi eld is applied, the dispersed particles form chains over the electrode, resulting in a solid-like behavior with a yield stress.

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Strain-hardening in the oscillatory shear deformation of a dedoped polyaniline electrorheological fluid

Cited by 33 publications

References 27 publications

Highly Electroresponsive Polymer Blends of Polyaniline Nanoparticles and Chloroprene Rubbers

Highly Electroresponsive Polymer Blends of Polyaniline Nanoparticles and Chloroprene Rubbers

Rectangular‐Shaped Polyaniline Tubes Covered with Nanorods and their Electrorheology

Facile Fabrication of Chemically Grafted Graphene Oxide–Poly(glycidyl methacrylate) Composite Microspheres and Their Electrorheology

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