Effect of Poly (Sodium 4-Styrenesulfonate) Stabilizer on Synthesis and Characterization of Polyaniline Nanoparticles

Hwang, J. Y.; Chin, In‐Joo; Choi, Hyoung Jin; Lee, K.; Guiseppi‐Elie, Anthony

doi:10.1080/744819007

Cited by 4 publications

(3 citation statements)

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“…Polypyrrole has been intercalated either in hydrophilic clay [39] by emulsion polymerization or in organoclay nanocomposite [40] using synthesized soluble polypyrrole. Among these ER materials, most popular conducting polymers are polyaniline and its derivative [41][42][43][44][45], polyaniline nanoparticles [46,47], microencapsulated polyaniline [48], polyaniline coreshell structure [49,50] polyaniline and polypyrrole copolymer [51] and polyaniline nanocomposites with clay [52]. To obtain semiconducting polyaniline for ER materials, the polyaniline particles must be dedoped by reducing the pH value in aqueous media.…”

Section: Er Polymeric Systemsmentioning

confidence: 99%

Electro-rheological polymers

Akhavan

2007

Proceedings of the Institution of Mechanical Engineers, Part G:

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Smart fluids in the form of electro-rheological (ER) fluids are among the most spectacular of the smart materials. ER fluids are typically suspensions of semiconducting, solid particles dispersed in an insulating carrier liquid, which show a dramatic increase in flow resistance when an external electric field is applied. This reversible and rapid change in flow properties has potential applications in many electronically controlled mechanical devices. This article gives a short overview of the field of ER materials and their basic properties. Current and future developments with particular attention to electrorheological polymers have been reviewed.

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Section: Er Polymeric Systemsmentioning

confidence: 99%

Electro-rheological polymers

Akhavan

2007

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…Poly(aniline) (Pani) is one of the conducting polymers having the highest mechanical flexibility, environmental stability and controllable conductivity with acid/base (doping/undoping) [12,13]. The synthesis of poly(aniline) can be carried out by dispersion polymerization in the presence of a polymeric stabilizer, which prevents PaniNP from aggregating during polymerization; at the end of the process uniform and spherical monodisperse PaniNP are obtained [14][15][16]. A lot of applications can be found for poly(aniline)-based composites such as food quality control [10].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline nanoparticle–carbon nanotube hybrid network vapour sensors with switchable chemo-electrical polarity

Lǚ¹,

Park²,

Kumar³

et al. 2010

Nanotechnology

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Chemo-resistive sensors were prepared from monodisperse poly(aniline) nanoparticles (PaniNP) synthesized via oxidative dispersion polymerization. Poly(styrene sulfonic acid) (PSSA) was used as the stabilizer and dopant agent. PaniNP transducers were assembled by spraying layer by layer a solution containing different concentrations of PaniNP and multi-wall carbon nanotubes (MWNT) onto interdigitated electrodes. This process led to stable sensors with reproducible responses upon chemical cycling. Chemo-electrical properties of these sensors have been investigated in sequential flows of pure nitrogen and nitrogen saturated with a set of volatile organic compounds (VOC). Interestingly the sensing mode of PaniNP transducers (the NVC or PVC effect) can be switched simply by increasing PaniNP content or by the addition of only 0.5% of MWNT to reach a resistance lower than 150 Omega. Due to their original conducting architecture well imaged by atomic force microscopy (AFM), i.e. a double percolated conductive network, PaniNP-MWNT hybrids present both higher sensitivity and selectivity than other formulations, demonstrating a positive synergy. Mechanisms are proposed to describe the original chemo-electrical behaviours of PaniNP-based sensors and explain the origin of their selectivity and sensing principle. These features make them attractive to be integrated in e-noses.

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“…[3][4][5][6] Recently, different morphologies of PANI-including nanowires, 7 nanoribbons, 8 and spherical particles 9,10 -have been investigated to extend the applications of PANI outside the realm of microelectronics. For instance, spherical PANI particles have recently been incorporated as electrorheological fluids, 11,12 catalysts, 13 and aqueous sensors for ammonia detection. 14 Several researchers have even begun incorporating dispersions of spherical PANI particles in inkjet-printing operations to produce high-resolution conductive patterns for low-cost sensors 14 and electrochromic devices.…”

Section: Introductionmentioning

confidence: 99%

Near-monodispersed polyaniline particles through template synthesis and simultaneous doping with diblock copolymers of PMA and PAAMPSA

2008

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Well-defined block copolymers of poly(methyl acrylate) and poly(2-acrylamido-2-methyl-1-propanesulfonic acid), PMA/PAAMPSA, were successfully synthesized by atom transfer radical polymerization. These amphiphilic block copolymers spontaneously form micelles with a hydrophobic PMA core and a hydrophilic PAAMPSA corona in aqueous solutions. These micelles were used to template synthesize polyaniline. Because the polymerization of aniline is restricted to the PAAMPSA corona, which also serves as the dopant, the size of the conductive particles can be controlled by tuning the molecular characteristics of the block copolymer while maintaining a narrow size distribution. When cast as films, their conductivities are influenced by the weight fraction of polyaniline present, with higher polyaniline loading resulting in higher conductivities.

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Effect of Poly (Sodium 4-Styrenesulfonate) Stabilizer on Synthesis and Characterization of Polyaniline Nanoparticles

Cited by 4 publications

References 0 publications

Electro-rheological polymers

Electro-rheological polymers

Polyaniline nanoparticle–carbon nanotube hybrid network vapour sensors with switchable chemo-electrical polarity

Near-monodispersed polyaniline particles through template synthesis and simultaneous doping with diblock copolymers of PMA and PAAMPSA

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