DBSA-CTAB mixture as the surfactant system for the one step inverse emulsion polymerization of aniline: Characterization and blend with epoxy resin

Calheiros, Loan F.; Soares, Bluma G.; Barra, Guilherme Mariz de Oliveira

doi:10.1016/j.synthmet.2017.02.014

Cited by 26 publications

(9 citation statements)

References 52 publications

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“…The peak at 1122 cm −1 is due to the in-plane bending vibration of C–H [33], while the 1298 cm −1 is because of C–N stretching of the benzenoid ring of PANI [34]. The band at 1467 cm −1 and 1565 cm −1 are assigned to benzenoid and quinoid ring vibration [14]. The presence of a peak at 3232 cm −1 confirmed the presence of N–H and NH 2 , which give rise to symmetric and asymmetric stretching [6].…”

Section: Resultsmentioning

confidence: 99%

“…Similarly, Sun et al [13], have used perchloric acid as a medium for the fabrication of PANI nanofibers coated with platinum for applications in fuel cells. The synthesis of PANI/DBSA salt using a DBSA-CTAB mixture as surfactant and toluene as a dispersion media was reported by Calheiros et al [14]. The synthesized materials were reported to have good electrical conductivity and effectiveness at electromagnetic interference shielding.…”

Section: Introductionmentioning

confidence: 99%

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Cost Effective Chemical Oxidative Synthesis of Soluble and Electroactive Polyaniline Salt and Its Application as Anticorrosive Agent for Steel

2019

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The cost effective synthesis of electroactive polyaniline (PANI) while retaining its desirable properties is one of the most debatable and challenging tasks for researchers in the field. Herein, we report a cost effective inverse emulsion polymerization pathway for the synthesis of soluble and processable PANI salt by using diesel as a novel dispersion medium. Different reaction parameters and their effects on the properties and yield of polyaniline were optimized. The polymer exhibited a highly porous morphology and was found to be stable up to 417 °C. The PANI salt showed good solubility in common solvents, such as chloroform, N-Methyl-2-pyrrolidone (NMP), dimethyl sulphoxide (DMSO) and in a 1:3 mixtures by volume of 2-propanol and toluene. The coating of the synthesized PANI salt on stainless steel has shown good corrosion resistant behavior in marine water by reducing the corrosion rate to 67.9% as compared to uncoated stainless steel.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cost Effective Chemical Oxidative Synthesis of Soluble and Electroactive Polyaniline Salt and Its Application as Anticorrosive Agent for Steel

2019

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“…The EDS spectrum in Figure 3 c shows the elemental composition of GO and confirms that GO was oxidized due to the presence of the GO functional groups i.e. carbon and oxygen [ 50 , 51 ].…”

Section: Resultsmentioning

confidence: 99%

Graphene Oxide Decorated Nanometal-Poly(Anilino-Dodecylbenzene Sulfonic Acid) for Application in High Performance Supercapacitors

et al. 2019

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Graphene oxide (GO) decorated with silver (Ag), copper (Cu) or platinum (Pt) nanoparticles that are anchored on dodecylbenzene sulfonic acid (DBSA)-doped polyaniline (PANI) were prepared by a simple one-step method and applied as novel materials for high performance supercapacitors. High-resolution transmission electron microscopy (HRTEM) and high-resolution scanning electron microscopy (HRSEM) analyses revealed that a metal-decorated polymer matrix is embedded within the GO sheet. This caused the M/DBSA–PANI (M = Ag, Cu or Pt) particles to adsorb on the surface of the GO sheets, appearing as aggregated dark regions in the HRSEM images. The Fourier transform infrared (FTIR) spectroscopy studies revealed that GO was successfully produced and decorated with Ag, Cu or Pt nanoparticles anchored on DBSA–PANI. This was confirmed by the appearance of the GO signature epoxy C–O vibration band at 1040 cm−1 (which decreased upon the introduction of metal nanoparticle) and the PANI characteristic N–H stretching vibration band at 3144 cm−1 present only in the GO/M/DBSA–PANI systems. The composites were tested for their suitability as supercapacitor materials; and specific capacitance values of 206.4, 192.8 and 227.2 F·g−1 were determined for GO/Ag/DBSA–PANI, GO/Cu/DBSA–PANI and GO/Pt/DBSA–PANI, respectively. The GO/Pt/DBSA–PANI electrode exhibited the best specific capacitance value of the three electrodes and also had twice the specific capacitance value reported for Graphene/MnO2//ACN (113.5 F·g−1). This makes GO/Pt/DBSA–PANI a very promising organic supercapacitor material.

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“…To obtain the dielectric charges, the synthesis of pure polyaniline (PANI) was performed with and without carbon nanotube (CNT) (Calheiros et al 2017). For magnetic charges, nanoferrites were synthesized (Oliveira et al 2017).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Epoxy Resin Composites in Multilayer Structure for Stealth Technology

Indrusiak

Soares

Pereira

et al. 2020

J.Aerosp. Technol. Manag.

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The present work evaluates a multilayer structure based on epoxy resin for stealth technology. The structure consists of two absorber layers with nanoferrite and a resistive layer between them containing polyaniline (PANI) with and without carbon nanotube (CNT). The best reflection loss result multilayer structure analyzed was Ni-PANICNT-Fe with RL = –22dB at 11,9 GHz, justified by higher conductivity loss due to the CNT in PANI epoxy composite.

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DBSA-CTAB mixture as the surfactant system for the one step inverse emulsion polymerization of aniline: Characterization and blend with epoxy resin

Cited by 26 publications

References 52 publications

Cost Effective Chemical Oxidative Synthesis of Soluble and Electroactive Polyaniline Salt and Its Application as Anticorrosive Agent for Steel

Cost Effective Chemical Oxidative Synthesis of Soluble and Electroactive Polyaniline Salt and Its Application as Anticorrosive Agent for Steel

Graphene Oxide Decorated Nanometal-Poly(Anilino-Dodecylbenzene Sulfonic Acid) for Application in High Performance Supercapacitors

Evaluation of Epoxy Resin Composites in Multilayer Structure for Stealth Technology

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