In Situ Doped Polyaniline Nanotubes for Applications in Flexible Conductive Coatings

Abstract

In-situ doped polyaniline nanotubes were fabricated and investigated in term of their morphological, thermal and electrical properties at varied doping levels. Different from the common post-doping of polyaniline base to form its emeraldine salt, the aniline monomers were directly converted into conductive emeraldine salt during synthesis by dropwise addition of the dopant and oxidants. This process resulted in a uniform and stable protonation of the polyaniline with good electrical conductivity. Furthermore, it was found that the crystalline conductive polyaniline nanotubes have a good flexibility when amalgamated with polyvinyl alcohol, showing their potential as flexible conductive coating materials.

Metal-Free Transparent Three-Dimensional Flexible Electronics by Selective Molecular Bridges

“…These choices, however, are limited in terms of conductivity and their tendency to aggregate, which can affect device transparency or cause electric circuit malfunction. To resolve these problems, conductive polymers that are processable, flexible, light weighted, not easily embrittled, and inexpensive have been widely studied and applied, e.g., in organic transistors and light-emitting diodes. − Representative examples used in modern electronic devices include polyacetylene, polyaniline, polypyrrole, and polythiophene. , Among these alternative options, poly­(3,4-ethylenedioxythiophene):poly­(styrenesulfonate) (PEDOT:PSS) is one of the most promising candidates for flexible electronics owing to its high mechanical flexibility, good visible transparency, superior biocompatibility, great processability, and high stability. ,− Furthermore, the electrical conductivity of PEDOT:PSS films can be markedly enhanced by postprocessing or additive introduction. For example, immersing PEDOT:PSS film in concentrated sulfuric acid can increase its conductivity to more than 4000 S/cm, which is close to that of ITO material.…”

Graphite nanosheet/polyaniline nanocomposites: Effect of in situ polymerization and dopants on the microstructure, thermal, and electrical conduction properties

“…Due to promising battery applications, [1][2][3][4][5] electromagnetic shielding, [6][7][8][9] actuators, [10][11][12][13] energy storage systems, [14][15][16][17][18][19][20][21] and other functional applications, [22][23][24][25][26][27][28][29] the study and development of composites and nanocomposites using intrinsically conducting polymers (ICP) as a matrix and some carbon allotropes, such as graphite, 12,13,27,28 graphene, 2,5,7,18,20 carbon black, 3,30,31 fullerenes, 19,32 and carbon nanotubes, 4,29,[33][34][35] has been intensifying in the literature. The function of ICP is to improve the contact between the particles or nanoparticles of inclusion, creating a three-dimensional network of conduction in the material.…”

Novel interpenetrating 3D network polyaniline/phenolic aerogel with combined thermal and electrical performances

“…As a kind of conducting polymer, polyaniline (PANI) is one of the best candidates for electrical components. PANI has good environmental stability, an unique conducting mechanism, and unusual doping/dedoping chemistry . PANI‐based aerogels offering an array of features such as intrinsic 3D microstructured conducting frameworks that promote the transport of charges, ions, and molecules exhibit more excellent electrical performance .…”

“…PANI has good environmental stability, an unique conducting mechanism, and unusual doping/dedoping chemistry. 8,9 PANI-based aerogels offering an array of features such as intrinsic 3D microstructured conducting frameworks that promote the transport of charges, ions, and molecules exhibit more excellent electrical performance. [10][11][12] PANI-based aerogels provide an excellent interface between the electronic-transporting phase (electrode) and the ionic-transporting phase (electrolyte).…”