Synthesis and morphological characterization of PMMA/polyaniline nanofiber composites

A novel water-based epoxy coating using self-doped polyaniline–clay synthesized under supercritical CO2 condition for the protection of carbon steel against corrosion

“…2. The characteristic bands of PAni appeared at 330 nm ( → * transition in benzenoid ring) and 637 nm (donor-acceptor interaction of quinonoid ring) which corresponds to the formation of emeraldine base PAni [44][45][46][47][48]. The absorption band at 430 nm is attributed to the polaron band →* transition, an indication that the as-prepared products are doped [49].…”

Electrical properties of carbon-based polypropylene composites for bipolar plates in polymer electrolyte membrane fuel cell (PEMFC)

“…Among the conjugated conducting polymers, PANi is known as having probably the best combination of stability, conductivity and low cost [24][25][26][27][28][29]. Methods to produce PANi containing composites [30][31][32] are classified into two groups: (i) synthetic methods-based on aniline polymerisation in the presence of, or inside, a matrix polymer and (ii) blending methods to mix a previously prepared PANi with a matrix polymer.…”

Polyaniline nanofibers as a new gamma radiation stabilizer agent for PMMA

“…SEM images of the final reaction product show fibrillar or rodtype nanostructures, with diameters ranging from 100 to 150 nm (Figures 1a and 1b). In the presence of SDS, PANF-HCl were thicker than those made in the absence of this surfactant [26]. Such charac-teristic may be desirable to ease the breaking up of the entanglements and to achieve a more homogeneous composite.…”

“…Other chemicals and commercial PMMA (Acrigel, 100 kg/mol, RESARBRAS ACRILICOS, Brazil) were used as received. HCl doped Polyaniline nanofibers (PANF-HCl) was synthesized through interfacial self-assembly polymerization according to Huang and Kaner [25], modified by the introduction of SDS as a surfactant agent [26]. Briefly, An (298 mg) and SDS (30 mg) were mixed with CHCl 3 (10 ml) and placed in a 50 ml beaker.…”

“…Yields were around 1 mg of PANI-HCl per 10 mg of An reagent. PMMA/ PANF-HCl mixtures were made as previously described [26]. In short, PANF-HCl dispersions in butanone (up to 250 mg/dl) were obtained after 5 to 10 min of sonication treatment of PANF-HCl powder mixed with this solvent, at room temperature (ultrasonic bath Quimis, 40 kHz).…”