Conducting Polyaniline Nanotubes by Template-Free Polymerization

Qiu, Hengwei; Wan, Meixiang; Matthews, Barry; Dai, Liming

doi:10.1021/ma001525e

Cited by 314 publications

(172 citation statements)

References 24 publications

Supporting

Mentioning

168

Contrasting

Order By: Relevance

“…4.1 PANI nanofibers obtained from micellar media PANI has been largely prepared as nanofiber with the use of polymerization media containing organic acids that acts as surfactants (Zhang et al, 2002;Qiu et al, 2001;Do Nascimento et al, 2006;Zhang et al, 2009). A broad variety of organic acid has been employed in order to modulate the diameter of the resulting nanofibers.…”

Section: Resultsmentioning

confidence: 99%

“…4 steps (a), (b) and (c) of micellar polymerization). Fiber diameters are observed to be as low as 30-60 nm and are highly influenced by reagent ratios (Zhang et al, 2002;Qiu et al, 2001;Do Nascimento et al, 2006). Ionic liquids (ILs) have also been used as synthetic media for the preparation of nanostructured conducting polymers (Gao et al, 2004;Rodrigues et al, 2007a;Rodrigues et al, 2007b).…”

Section: Nanostructured Polyanilinementioning

confidence: 99%

See 1 more Smart Citation

Spectroscopy of Polyaniline Nanofibers

Nascimento¹

2010

Nanofibers

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Section: Nanostructured Polyanilinementioning

confidence: 99%

Spectroscopy of Polyaniline Nanofibers

Nascimento¹

2010

Nanofibers

View full text Add to dashboard Cite

“…Oxidation in solutions of weak acids often produced PANI nanotubes. The first papers reporting their preparation were published by Wan et al [5,6]. It has been proposed that weak organic acids present in the medium form salts with aniline.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline: The infrared spectroscopy of conducting polymer nanotubes (IUPAC Technical Report)

Trchová

Stejskal

2011

Pure and Applied Chemistry

519

241

View full text Add to dashboard Cite

Polyaniline (PANI), a conducting polymer, was prepared by the oxidation of aniline with ammonium peroxydisulfate in various aqueous media. When the polymerization was carried out in the solution of strong (sulfuric) acid, a granular morphology of PANI was obtained. In the solutions of weak (acetic or succinic) acids or in water, PANI nanotubes were produced. The oxidation of aniline under alkaline conditions yielded aniline oligomers. Fourier transform infrared (FTIR) spectra of the oxidation products differ. A group of participants from 11 institutions in different countries recorded the FTIR spectra of PANI bases prepared from the samples obtained in the solutions of strong and weak acids and in alkaline medium within the framework of an IUPAC project. The aim of the project was to identify the differences in molecular structure of PANI and aniline oligomers and to relate them to supramolecular morphology, viz. the nanotube formation. The assignment of FTIR bands of aniline oxidation products is reported.

show abstract

“…Polyaniline was prepared by template free method [22][23][24][25] by mixing the aqueous solution of (1.23 mm) ammonium peroxidisulfate, an oxidant, and (2.5 mm) aniline dissolved in 50 ml of 1M sulfuric acid. A weighed amount of aniline was dissolved in diluted sulfuric acid while agitated continuously.…”

Section: Laboratory Synthesis Of Polyanilinementioning

confidence: 99%

Nano Reactive Polymer Based on Polyaniline as Asphalt Modifier for Anticorrosion Application

Elnaggar

El-Sherif

Migahed

et al. 2011

Al-Azhar Bulletin of Science

View full text Add to dashboard Cite

Recently, the application of nanotechnology in the corrosion protection of metals has gained momentum. On the other hand, polymers are used as corrosion inhibitor coatings that are physically, chemically or electrochemically deposited on the metal substrate. Although asphalt has low cost, high cohesive nature, rheological properties and high thermal resistance but it is not practically used on a large scale in anticorrosion applications. So, the aim of this research is to use the nanotechnology science in preparing modified asphaltic materials to produce new and more qualified anti-corrosive coatings. To achieve this aim, nanoparticles of polyaniline (PANI-H2SO4) using template free polymerization method are prepared and characterized by FTIR, XRD and SEM. Another nonreactive polymer of type low density poly ethylene (LDPE) has been used for comparison purpose. The two types of modifiers have mixed with asphalt of type 85/25 in different percentages as 2, 4, 6, 8& 10٪by the weight of the virgin bitumen. The modified asphalt samples have physically tested and the morphology by SEM has conducted. The ability of modified bitumen samples to serve as corrosion protective coatings for carbon steel has examined by open circuit potential-time (Eocp-time), and potentiodynamic polarization in 0.5 M HCl solution. The results revealed that all the prepared samples show a good behavior as anticorrosive materials and bitumen modified by PANI-H2SO4 is the most qualified material as it had protection efficiency of 99.996 % with respect to uncoated CS while the protection efficiency of PMA/LDPE is 99.98 %.

show abstract

Conducting Polyaniline Nanotubes by Template-Free Polymerization

Cited by 314 publications

References 24 publications

Spectroscopy of Polyaniline Nanofibers

Spectroscopy of Polyaniline Nanofibers

Polyaniline: The infrared spectroscopy of conducting polymer nanotubes (IUPAC Technical Report)

Nano Reactive Polymer Based on Polyaniline as Asphalt Modifier for Anticorrosion Application

Contact Info

Product

Resources

About