Conductive polyacrylonitrile/polyaniline nanofibers prepared by electrospinning process

Abstract

Electrospinning of polymer blends solutions offers the potential to prepare novel nanofibers for use in a variety of applications. Conductive blend nanofibers of polyaniline doped with camphorsulfonic acid (PANi CSA) and polyacrylonitrile (PAN) were prepared by electrospinning process. The influences of PANi CSA content on the morphological, electrical conductivity, and mechanical properties of the blend nanofibers were investigated. The SEM analysis of the nanofibers samples revealed that the average diameter of the nanofibers decreases with increasing PANi CSA concentration. The resultant PAN/PANi CSA blend nanofibers diameters were in the range of 59 to 234 nm. Tensile results showed that 30 wt% PANi CSA load ing to the electrospun PAN/PANi CSA blend nanofibers gave rise to 10 fold and 3 fold increase in the tensile modulus and tenacity of nanofiber layers, respectively. The electrical conductivity measurements of these nanofibers could be adjusted from ~10 -10 S/cm (insulator) to ~10 -1 S/cm (conductor) by choosing the dif ferent amounts of PANi CSA between 0 and 40 wt%. The significant enhanced mechanical and electrical properties of these PAN/PANi CSA blend nanofibers can be utilized for quite promising future electronic applications.

Guanine oxidation signal enhancement in single strand DNA with polyacrylonitrile/polyaniline (PAN/PAni) hybrid nanofibers

“…35,45 After addition of PAni in PAN, the peaks were similar to PAN powder peaks (the peaks were detected at 2u 5 178 and 268). 35 The peak intensity increase after PAni addition implied that PAni polymer chains were long, rigid, and contain aromatic rings helping crystals formation of PAN during ES. 33 A sharp characteristic graphite diffraction peak was detected at 2u 5 26.78 at PAN NF-coated PGE corresponding to the (002) diffraction line.…”

“…Increase of diameter can be related to increase of solution viscosity with addition of PAni powder to PAN/DMF solution. Introduction of PAni in PAN/DMF solution led to conductivity increase and greater number of charges on the NF surface caused more repulsion on NFs during the electrospinning process . Consequently, a more stretched NF was formed and the average NF diameter can be decreased.…”

Electrospinning Functional Polyacrylonitrile Nanofibers with Polyaniline, Carbon Nanotubes, and Silver Nitrate as Additives

“…Solvent selection is also important since it primarily determines the solubility of the polymers and electrospinnability [35]. The studies about PAN/PANI composite nanofibers are mainly focused on the effects of PANI content, dopant types, solvent types, solution preparation procedures, and redoping on the properties of composite nanowebs [14,19,32,[35][36][37].…”

Optimization of testing parameters for tensile property evaluation of poly(vinyl alcohol) nanofibers webs

“…Shoushtari et al . and other researchers tested with 50 mm × 10 mm rectangle samples with a thickness of 170–370 nm. These works tested with a pre‐tension of 0.20 cN at a test speed of 10 mm·min −1 .…”