Chemical synthesis and characterization of polyaniline nanofiber doped with gadolinium chloride

Zhang, Shuling; Kan, Suqing; Kan, Jinqing

doi:10.1002/app.23072

Cited by 22 publications

(10 citation statements)

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“…The characteristic peaks appearing at 1289 and 1119 cm −1 corresponded to C—N stretching (—N—benzenoid—N—) and C N stretching (—N quinoid N—), respectively. The band appearing at 1234 and 800 cm −1 are attributed to the C—N stretching vibration and the C—H out‐of plane bending vibration, respectively . The band at 3319 cm −1 could be attributed to NH stretching mode of PANI.…”

Section: Resultsmentioning

confidence: 95%

Synthesis, characterization, and properties of new conducting polyaniline/copper sulfide nanocomposites

Ramesan

2013

Polym Eng Sci

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This article reports the facile synthesis of copper sulfide (CuS)/polyaniline (PANI) nanocomposites by in situ polymerization. The composites were characterized by scanning electron microscopy (SEM), UV–visible and Fourier transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). SEM analysis showed that the metal sulfide nanoparticles were uniformly dispersed in the polymer matrix. The characteristic peaks in FTIR and UV–vis spectra of PANI were found to be shifted to higher wave numbers in PANI/CuS composite, which is attributed to the interaction of CuS nanoparticles with PANI chain. XRD pattern revealed the structurally ordered arrangement of polymer composite and this regularity increases with increase in concentration of nanoparticles. Glass transition temperature of the nanocomposite increased with increase in the concentration of nanoparticles and it indicated the ordered arrangement of the polymer composite than PANI. TGA studies indicated excellent thermal stability of polymer nanocomposite. The electrical properties of nanocomposites were studied from direct current and alternating current resistivity measurement. Conductivity, dielectric constant, and dissipation factor of the nanocomposite were significantly increased with the increase in CuS content in the nanocomposite. The enhancement of these properties suggests that the proposed PANI/CuS nanocomposites can be used as multifunctional materials for nanoelectronic devices. POLYM. ENG. SCI., 54:438–445, 2014. © 2013 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 95%

Synthesis, characterization, and properties of new conducting polyaniline/copper sulfide nanocomposites

Ramesan

2013

Polym Eng Sci

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“…By comparing PANI/PVA composite and PANI/PVA composite at different irradiation times (3, 6, 9, 12 and 15) min., it can be observed that, with increasing irradiation time, the π-π* absorption band at 230 nm and n-π* absorption band at 286nm are slightly shifted towards higher wavelength at (232, 238, 236, 236, 236) nm and (292, 296.296, 294, 296) nm respectively. This red shift which indicates that, the conjugation chain of PANI enlarged and expected to lower the absorption energy [10][11][12]. Also, there are new bands appeared at (556,564,564,562 and 564) nm for irradiation time at (3, 6, 9, 12 and 15) min.…”

Section: Uv-vis Absorption Spectroscopymentioning

confidence: 89%

Preparation and characterization of polyani-line/polyvinyl alcohol nanocomposite by laser irradiation

Shahin

Mongy²,

Kamal³

et al. 2017

IJBAS

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Polyaniline (PANI) -Polyvinyl alcohol (PVA) nanocomposite were prepared using laser irradiation method. X-ray diffraction results showed that, (PANI/PVA) nanocomposite exhibited amorphous nature of polymer. The electronic transition will be studied using Ultraviolet-Visible spectrometer (UV-Vis). The real part of dielectric constant (έ) and imaginary part (ε") were studied. Also, the relaxation time was calculated.

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“…Miscellaneous Template-Free Methods: Self-assembled PANI-NFs have been prepared by the oxidative polymerization of aniline with APS in an acidic aqueous solution in the presence of HCl [172,[204][205][206], HCl and ethanol [207], HCl and colloidal Au particles [208], H 2 SO 4 [204], o-phosphoric acid (H 3 PO 4 ) [204], H 3 PO 4 and Fe 3 O 4 nanospheres [209], HNO 3 [210], tetrafluoroboric acid [204], HClO 4 [59], selenious acid [211], hydrophilic organic acids, e.g., oxalic acid [112], citric acid [112], tartaric acid [112], and 5-sulfosalicylic acid [212], PEG [213], molybdic acid [214], and gadolinium chloride [215]. Rod-like nanostructures, as well as nano/microspheres with rod-like nanostructures pointing out to the sphere surface, have recently been prepared by the oxidation of aniline with APS in citrate/phosphate buffer (pH ¼ 3) [216,217].…”

Section: Rapid-mixing Methodmentioning

confidence: 99%

Polyaniline Nanostructures

Ćirić‐Marjanović

2010

Nanostructured Conductive Polymers

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Polyaniline (PANI) is one of the most extensively studied conducting polymers because of its simple synthesis [1] and doping/dedoping chemistry [2], low cost, high conductivity, and excellent environmental stability. PANI has a wide applicability in rechargeable batteries [3], erasable optical information storage [4], shielding of electromagnetic interference [5], microwave-and radar-absorbing materials [6], sensors [7], indicators [8], catalysts [9], electronic and bioelectronic components [10], membranes [11], electrochemical capacitors [12], electrochromic devices [13], nonlinear optical [14] and light-emitting devices [15], electromechanical actuators [16], antistatic [17] and anticorrosion coatings [18]. Its electromagnetic and optical properties depend mostly on its oxidation state and degree of protonation [19]. The green emeraldine salt form of PANI is conducting ($1-10 S cm À1 for granular powders) [1]. It contains, depending on the synthetic route, variousunits (in the preceeding formulae B, Q and A À denote a benzenoid ring, quinonoid ring and dopant anion, respectively). The blue emer-The preparation of bulk quantities of conducting granular PANI is usually performed Nanostructured Conductive PolymersEdited by Ali Eftekhari by the oxidative polymerization of aniline with ammonium peroxydisulfate (APS) in an acidic aqueous solution (initial pH < 2.0) [1]. Colloidal PANI nanoparticles are prepared by dispersion polymerization of aniline in the presence of various colloidal stabilizers [20,21]. The average size of colloidal PANI nanoparticles decreases with increasing stabilizer/aniline ratio. PANI colloids often have nonspherical (rice grain, needle-like, etc.) core-shell morphology. The colloidal nanoparticle core most likely has a composite nature, i.e. it is composed of both the PANI and the incorporated stabilizer, while the shell is formed by the stabilizer. Nowadays, conducting PANI nanostructures are the focus of intense research owing to their significantly enhanced dispersibility and processability, and substantially improved performance in many applications, in comparison with granular and colloidal PANI [22][23][24][25][26][27]. The continuously growing interest in the study of zero-dimensional (0-D) (solid nanospheres), one-dimensional (1-D) (nanofibers (nanowires), nanorods (nanosticks), nanoneedles, rice-like nanostructures, nanotubes), two-dimensional (2-D) (nanoribbons (nanobelts), nanosheets (nanoplates, nanoflakes, nanodisks, leaf-like nanostructures), nanorings (cyclic nanostructures), net-like nanostructures), and three-dimensional (3-D) PANI nanostructures (hollow nanospheres, dendritic and polyhedral nanoparticles, flower-like, rhizoid-like, brain-like, urchin-like, and star-like nanostructures, etc.) has dramatically increased in recent years (Figure 2.1). The major focus of research has been the preparation, characterization, processing, and application of PANI nanofibers (PANI-NFs) and nanotubes (PANI-NTs). PANI-NFs are 1-D PANI nanoobjects of cylindrical profile with diameters ...

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Chemical synthesis and characterization of polyaniline nanofiber doped with gadolinium chloride

Cited by 22 publications

References 42 publications

Synthesis, characterization, and properties of new conducting polyaniline/copper sulfide nanocomposites

Synthesis, characterization, and properties of new conducting polyaniline/copper sulfide nanocomposites

Preparation and characterization of polyani-line/polyvinyl alcohol nanocomposite by laser irradiation

Polyaniline Nanostructures

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