Synthesis and Characterization of Polyaniline/Gold Nanocomposites

Sridevi, V.; Malathi, S.; Devi, CS

doi:10.4172/2150-3494.1000018

Cited by 9 publications

(8 citation statements)

References 6 publications

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“…which is characteristic of PANI-ES form is also seen [28].. The peak at 3388 cm -1 is assigned to N-H stretching of Benzenoid ring [29]. The peak at 1291 cm -1 is assigned to C-N stretching of the secondary amine of PANI backbone.…”

Section: Testing Of Corrosion Resistance Propertiesmentioning

confidence: 89%

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

Elnaggar

El-Sherif

Migahed

et al. 2011

Al-Azhar Bulletin of Science

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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 %.

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Section: Testing Of Corrosion Resistance Propertiesmentioning

confidence: 89%

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

Elnaggar

El-Sherif

Migahed

et al. 2011

Al-Azhar Bulletin of Science

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“…The last two bands are assigned to C=C stretching of the benzenoid and quinoid rings, respectively and the band at 1242 cm -1 is characteristic for PANI emeraldine salt form [28]. The peak at 3380 cm -1 is assigned to N-H stretching of Benzenoid ring [29]. The band at 1290 cm -1 is assigned to C-N stretching of the secondary amine of PANI backbone.…”

Section: Ft-ir Spectramentioning

confidence: 99%

Nano Reactive and Nonreactive Polymers as Asphalt Modifiers for Anticorrosion Application

Elnaggar

Nassar

Migahed

et al. 2012

Al-Azhar Bulletin of Science

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Anti-corrosive coatings for carbon steel were formulated using modified asphaltic materials. Nanoparticles of polyaniline (PANI-HCl) were prepared by template free polymerization method and compared with low-density polyethylene (LDPE) as a nonreactive polymer. FT-IR proved the formation of polyaniline and XRD demonstrated a relative crystalline structure of the polymer while SEM showed fibrous nano morphology. The two types of modifiers were mixed with asphalt of type 85/25 in different percentages. SEM proved that polymer content of 4%, for both polymers, represented the most homogeneous polymer distribution in the bitumen as the continuous phase. Asphalt modification with LDPE yielded the largest values of softening point and the lowest values of penetration. The ability of modified bitumen samples, to serve as corrosion protective coatings for carbon steel, was examined by open circuit potential-time (Eocp-time) and potentiodynamic polarization in 0.5 M HCl solution. PANI-HCl based coating proved the best protective coating as it had protection efficiency of 99.997 % with corrosion rate 160.3 nm/Y.

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“…Conducting polymer, especially polyaniline (PANI), has received significant attention due to its inexpensive monomer, ease of preparation, high yield and environmental stability [12,13]. PANI has shown great potential in applications such as electronics, corrosion protection layers, chemical sensors, anti-microbial coatings etc [14].…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11] Conducting polymers, especially polyaniline (PANI), have received significant attention due to their inexpensive monomer, ease of preparation, high yield and environmental stability. 12,13 PANI has shown great potential in applications such as electronics, corrosion protection layers, chemical sensors, anti-microbial coatings etc. 14 The electrical properties of PANI can be modulated by changing its oxidation state and protonation of the amine group since the electrical conductivity of PANI depends on the mobility of charge carriers and the hopping mechanism between the PANI chains along with the concentration of charge carriers.…”

Section: Introductionmentioning

confidence: 99%

A smart functional surfactant activated conductive polymer coated on paper with ultra-sensitive humidity sensing characteristics

et al. 2022

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Synthesis and Characterization of Polyaniline/Gold Nanocomposites

Cited by 9 publications

References 6 publications

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

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

Nano Reactive and Nonreactive Polymers as Asphalt Modifiers for Anticorrosion Application

A smart functional surfactant activated conductive polymer coated on paper with ultra-sensitive humidity sensing characteristics

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