Soluble polyaniline co-doped with dodecyl benzene sulfonic acid and hydrochloric acid

Yin, Wusheng; Ruckenstein, Eli

doi:10.1016/s0379-6779(99)00179-4

Cited by 156 publications

(84 citation statements)

References 17 publications

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“…It is seen from Table I that the red shift of the peaks are more obvious when the volume ratio of ethanol to aniline is 1:1, which indicates that the polarons in PANI prepared under this condition are more delocalized than other ratios. 24 The optimum might occur owing to an optimum in the effective conjugation length, with increase of the volume ratio of ethanol/aniline. However, with the further increase of ethanol/aniline volume ratio, the red shifts of polaron band begin to decrease, and when the volume ratio of ethanol to aniline is 6:1, the polaron bands of PANI come back to that of the PANI without ethanol.…”

Section: Resultsmentioning

confidence: 99%

Effect of ethanol on chemically synthesized polyaniline nanothread

Kan

Zhang

Jing

2005

J of Applied Polymer Sci

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ABSTRACT:The nanothread of polyaniline (PANI) using ammonium persulphate ((NH 4 ) 2 S 2 O 8 ) as an oxidant was prepared. The solution is composed of 0.4 mol dm Ϫ3 aniline, 1.0 mol dm Ϫ3 hydrochloric acid, and different proportions ethanol. The resulting products were characterized using infrared spectroscopy, UV-vis spectra, transmission electron microscope, thermogravimetric analysis techniques, and Xray diffraction. The experimental results show that the content of ethanol has effects on the morphology of PANI, but the effects on the conductivity are not very obvious. When the volume ratio of ethanol to aniline is 1:2, the more uniform and regular PANI nanothread can be prepared.

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Section: Resultsmentioning

confidence: 99%

Effect of ethanol on chemically synthesized polyaniline nanothread

Kan

Zhang

Jing

2005

J of Applied Polymer Sci

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“…The full width at half maximum (FWHM) of PANI, PANI/ASPB and PANI/SiO 2 at 2θ = 25˝, 2θ = 25.4˝is 2.4˝, 3˝, and 2˝, respectively, which indicates that the crystallinity of conducting nanocomposites increases by doping with SiO 2 . It can be considered that the formation of the ordered structure for benzene is promoted by addition of ASPB and SiO 2 , helping the plane scattering between the benzene ring [31]. However, the increase in crystallization means a larger particle size for nanocomposites, and the solubility is degraded.…”

Section: Structural Analysis-xrd Patternsmentioning

confidence: 99%

Polyaniline-Doped Spherical Polyelectrolyte Brush Nanocomposites with Enhanced Electrical Conductivity, Thermal Stability, and Solubility Property

Na¹

2015

Polymers

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Abstract:The synthesis procedure and dopant are crucial to the electrical conductivity, thermal stability, and solubility properties of polyaniline (PANI). In this paper, high-performance PANI was synthesized by means of chemical oxidative polymerization using anionic spherical polyelectrolyte brushes (ASPB) as dopant.The bonding structure, crystallographic structure, morphology, and thermal stability of the conductive nanocomposite were analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermo-gravimetric analysis (TGA) respectively. Meanwhile, investigation on the electrical conductivity suggested that the room-temperature electrical conductivity of PANI doped with ASPB (PANI/ASPB) was 19.3 S/cm, which was higher than that of PANI (7.0 S/cm), PANI doped with poly(sodium-p-styrenesulfonate) (PSS) (PANI/PSS) (14.6 S/cm), PANI doped with SiO 2 (PANI/SiO 2 ) (18.2 S/cm), and PANI doped with canonic spherical polyelectrolyte brushes (CSPB) (PANI/CSPB) (8.0 S/cm). Meanwhile, the addition of ASPB improved the thermal stability and solubility properties of PANI. ASPB played the role of template. Conductive mechanism of PANI/ASPB nanocomposite can be explained by the theoretical models of three-dimensional variable range-hopping (3D VRH).

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“…[33][34][35] The Ag-PMT nanocomposites were completely soluble in polar solvents such as DMSO, dimethylformamide (DMF), N-methylpyrrolidone (NMP), and Chloroform (Scheme 1).…”

Section: Results and Discussion Solubilitymentioning

confidence: 99%

Synthesis and characterization of poly (m-toluidine)-silver halide nanocomposites: thermal properties and its conducting behavior

Vijayanand¹,

Vivekanandan²,

Mahudeswaran³

et al. 2014

Designed Monomers and Polymers

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Inorganic-organic hybrid nanocomposite of functional polyaniline derivatives has been synthesized successfully using chemical oxidative polymerization of m-toluidine (PMT) with silver nanocolloids (Ag) coated with dodecylbenzenesulfonic acid. The Ag-PMT nanocomposites were characterized using different analytical techniques such as UV-visible, FT-IR, scanning electron microscopy (SEM), X-ray diffraction methods (XRD), and thermal analysis. Conducting properties of these nanocomposites were studied using four-probe method. Thermogravimetric analysis indicated that an enhanced thermal stability of the nanocomposite as compared with the pure PMT polymer. Ag-PMT nanocomposite with~50 nm diameter was observed in the SEM analysis. SEM image also reveals that the silver nanoparticles were well dispersed and embedded in the PMT matrix. XRD pattern shows that the nanocomposite is of crystalline nature. Interestingly, the electrical conductivity of Ag-PMT nanocomposite exhibits three orders of magnitude, i.e. 0.1936 S cm −1 higher than that of pure PMT 1.09 × 10 −3 S cm −1 . The nanocomposite material shows better solubility than the polyaniline.

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Soluble polyaniline co-doped with dodecyl benzene sulfonic acid and hydrochloric acid

Cited by 156 publications

References 17 publications

Effect of ethanol on chemically synthesized polyaniline nanothread

Effect of ethanol on chemically synthesized polyaniline nanothread

Polyaniline-Doped Spherical Polyelectrolyte Brush Nanocomposites with Enhanced Electrical Conductivity, Thermal Stability, and Solubility Property

Synthesis and characterization of poly (m-toluidine)-silver halide nanocomposites: thermal properties and its conducting behavior

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