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Highly Crystalline Polyaniline Nanostructures Doped with Dicarboxylic Acids
Author(s) -
Zhang Z.,
Wan M.,
Wei Y.
Publication year - 2006
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200500636
Subject(s) - materials science , polyaniline , nanofiber , dopant , nanostructure , polyaniline nanofibers , micelle , conductivity , chemical engineering , doping , dicarboxylic acid , polymer , nanotechnology , polymer chemistry , organic chemistry , composite material , chemistry , polymerization , optoelectronics , aqueous solution , engineering
Highly crystalline polyaniline (PANI) nanotubes and nanofibers ca. 80–170 nm in diameter are successfully prepared by a “micelle soft‐template” method in the presence of dicarboxylic acids dopants with different numbers ( n ) of –CH 2 – groups ( n = 0–4). It is found that the diameter of the nanostructures increases on increasing the number of –CH 2 – groups in the dicarboxylic acids. The conductivity of the nanostructures increases as their diameters decrease, showing that size has an effect on conductivity. A narrow peak at 2θ = 6.50° is observed in the X‐ray diffraction pattern, indicating that the distance in the direction perpendicular to the polymer chain increases as the number of –CH 2 – groups increases.