Effect of ethanol on chemically synthesized polyaniline nanothread

Kan, Jinqing; Zhang, Shuling; Jing, Guolin

doi:10.1002/app.22345

Cited by 25 publications

(12 citation statements)

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“…This will also be documented below by Raman spectroscopy. The addition of ethanol to reaction mixture has been reported to change the common granular morphology of PANI to fibrillar [41]. In the present study, however, the morphology of PANI prepared in ethanol (50 vol%)-water was strictly granular (Fig.…”

Section: Article In Presscontrasting

confidence: 73%

Ferromagnetic behaviour of polyaniline-coated multi-wall carbon nanotubes containing nickel nanoparticles

Konyushenko

Kazantseva

Stejskal

et al. 2008

Journal of Magnetism and Magnetic Materials

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Section: Article In Presscontrasting

confidence: 73%

Ferromagnetic behaviour of polyaniline-coated multi-wall carbon nanotubes containing nickel nanoparticles

Konyushenko

Kazantseva

Stejskal

et al. 2008

Journal of Magnetism and Magnetic Materials

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“…Here, we further found just using organic solvents as additive agents would also result in the formation of uniform PANI nanofibers. Though Kan et al have investigated the effect of ethanol on chemically synthesized PANI nanothread and found different usages of ethanol would result in PANI with different morphology without changing of conductivity [30,31], few investigations have been reported for the influence of other organic solvents, including DMSO, dimethyl formamide (DMF), tetrahydrofuran (THF) and N-methyl-2-pyrrolidinone (NMP). The effects of the kinds and usages of the organic solvents on the morphology, structure, conductivity and water-dispersity of the resulting PANI have been investigated via the aid of SEM, UV-Vis, FT-IR and Raman spectra and conductivity measurements.…”

Section: Introductionmentioning

confidence: 99%

Effect of addition of organic solvents on properties of the chemically synthesized polyaniline in aqueous solutions

et al. 2007

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In the process of polymerization of aniline in aqueous solution, different kinds or volumes of organic solvents were added. The effects of the organic solvents on the morphology, structure, conductivity and water-dispersity of the resulting polyaniline (PANI) were investigated with the aid of SEM, UV-Vis, FT-IR and Raman spectra and conductivity measurements. The results showed that the weak H-bond interactions between PANI and the solvents might play an important role in forming uniform nanofibers with relatively high conductivity and good waterdispersity. However, excessive addition of organic solvents led to the aggregation of the nanofibers and the corresponding PANI had a bad water-dispersity.

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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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Effect of ethanol on chemically synthesized polyaniline nanothread

Cited by 25 publications

References 42 publications

Ferromagnetic behaviour of polyaniline-coated multi-wall carbon nanotubes containing nickel nanoparticles

Ferromagnetic behaviour of polyaniline-coated multi-wall carbon nanotubes containing nickel nanoparticles

Effect of addition of organic solvents on properties of the chemically synthesized polyaniline in aqueous solutions

Polyaniline Nanostructures

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