On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

Segal, Ester; Haba, Y.; Narkis, M.; Siegmann, A.

doi:10.1002/1099-0488(20010301)39:5<611::aid-polb1035>3.0.co;2-r

Cited by 35 publications

(15 citation statements)

References 21 publications

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“…4) show high resistivities, beyond the limit of the measuring device at low shear rate levels, and a dramatically reduced and then nearly constant resistivity at the higher shear rate levels ($7 Â 10 5 ohm cm). A similar behavior of the 20 phr PANI content filaments was observed by Segal et al, 13 who investigated filaments consisting of XPS (crosslinked polystyrene)/ PANI blends. Their observation was outstanding because the filaments were only slightly above the percolation concentration (here the difference is somewhat higher).…”

Section: Electrical Conductivity-morphology Relationshipssupporting

confidence: 79%

Electrically conductive sensors for liquids based on ternary immiscible polymer blends containing polyaniline

Cooper

Segal

Srebnik

et al. 2004

Polymers for Advanced Techs

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Electrically conductive blends, containing two immiscible polymers (ethylene vinyl acetate, EVA-19, and copolyamide 6/6.9, CoPA) and polyaniline (PANI), were produced by melt processing. These blends showed a preferred localization of PANI in the CoPA phase, thus enhancing the formation of continuous conducting networks. Electrically conductive PANI-containing filaments produced by a capillary rheometer process at various shear rate levels were studied as sensing materials for a homologous series of alcohols (methanol, ethanol and 1-propanol). All filaments showed a decreasing resistance upon exposure to these solvents. Filaments exposed to methanol, liquid or vapor, exhibited the highest resistance decrease. This behavior was related to the highest polarity of methanol, compared with ethanol and 1-propanol. The filaments' rate of production significantly affects the relative resistance change upon exposure to the various alcohols and their reproducibility.

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Section: Electrical Conductivity-morphology Relationshipssupporting

confidence: 79%

Electrically conductive sensors for liquids based on ternary immiscible polymer blends containing polyaniline

Cooper

Segal

Srebnik

et al. 2004

Polymers for Advanced Techs

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“…with a focus on the production of the composite films rather than composite nanofibers. [20][21][22][23][24][25][26] Blending of doped polyaniline with insulating polymers makes it possible to produce conductive polymers. 10 The electrical conductivity of the composite materials in the form of films depends mainly on the PANI content in the film besides some other factors such as the type of the solvent and dopant 25 and is reported to be between 10 À11 S/cm and 300 S/cm.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile/polyaniline composite nanofiber webs with electrostatic discharge properties

Kızıldağ

Uçar

Önen

et al. 2016

Journal of Composite Materials

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In this study, composite nanofibers of polyacrylonitrile (PAN) and polyaniline (PANI) were successfully produced by electrospinning technique and the effects of different dopants such as camphorsulfonic acid (CSA), dodecylbenzene sulfonic acid (DBSA) and dodecylbenzene sulfonic acid sodium salt (DBSANa þ ), and different solvents such as dimethylsulfoxide (DMSO) and N,N 0 -dimethylformamide (DMF) on the properties of PAN/PANI composite nanofiber webs have been investigated. It has been observed that nanofibers produced from DMSO generally had larger fiber diameters and higher breaking strength than nanofibers produced from DMF. CSA could dope better than DBSA(iso) and DBSANa þ . CSA resulted in the highest conductivity when DMSO was used while it resulted in lower conductivity in DMF. The insulator PAN became a semiconductive material with the incorporation of CSA-doped PANI. The highest electrical conductivity obtained was 10 À6 S/cm which is in the range suitable for electrostatic discharge applications.

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“…Nonetheless, because the doped PANI salt is very hydrophilic with a high surface energy, it is hard to directly disperse the PANI in a polymer matrix, such as polystyrene (PS) and poly(methyl methacrylate). 12–14 In this study, to solve PANI processability, the copolymerization of ANI with AC was carried out in the presence of ultrasonic irradiation to prepare poly(aniline‐ co ‐3‐aminobenzoic acid) (PANABA) on a nanoscale. Then, the prepared nanocopolymer was used for the preparation of a nanoblend.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of conductive nanoblends based on poly(aniline‐co‐3‐aminobenzoic acid) in the presence of poly(styrene‐alt‐maleic acid)

Zare‬¹,

Moghadam²

2011

J of Applied Polymer Sci

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In this article, we describe electrically conductive nanoblends containing poly(aniline-co-3-aminobenzoic acid) (PANABA), poly(styrene-alt-maleic acid) (PSMAC), and polystyrene. PANABA copolymers on a nanoscale were prepared under ultrasonic irradiation by the oxidative copolymerization of aniline and 3-aminobenzoic acid at different molar ratios. PSMAC was also prepared in our laboratory. The obtained conductive nanoblends formed films with good homogeneity and flexibility. The conductivity of the obtained nanoblends was measured with a four-probe method.The maximum electrical conductivity obtained was 0.60 S/cm. The characterization of the obtained copolymers and nanoblends was carried out by Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, and X-ray diffraction. Scanning electron microscopic images were taken from the obtained nanoblends. V C 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: [97][98][99][100][101][102][103][104] 2011

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On the structure and electrical conductivity of polyaniline/polystyrene blends prepared by an aqueous-dispersion blending method

Cited by 35 publications

References 21 publications

Electrically conductive sensors for liquids based on ternary immiscible polymer blends containing polyaniline

Electrically conductive sensors for liquids based on ternary immiscible polymer blends containing polyaniline

Polyacrylonitrile/polyaniline composite nanofiber webs with electrostatic discharge properties

Synthesis and characterization of conductive nanoblends based on poly(aniline‐co‐3‐aminobenzoic acid) in the presence of poly(styrene‐alt‐maleic acid)

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