The invention belongs to the field of conductive
high polymer materials, in particular to dedoping-resistant dye-
doped polyaniline and a preparation method and application thereof. A dye-doped conductive
polyaniline material is prepared by
doping and modifying
polyaniline with a
doping dye which contains a sulfonic group, a
carboxylic group or a
metal dentate on the theoretical basis that negative ions can be used for inducing
polyaniline processability, can be taken as a
corrosion-resistant,
pollution-resistant, antibacterial, antistatic, conductive and
electromagnetic shielding coating,
fiber and the like, and is applied to the fields of
metal corrosion prevention, environmentally-friendly treatment,
catalysis materials, photoelectric materials, conductive plastic,
fiber, biological sensing and the like. In the invention, dye
doping of polyaniline can be realized with subsequent doping methods such as in-situ synthetic doping, impregnation doping, thermal doping,
grinding doping and the like; and the dye-
doped polyaniline has high dedoping resistance in organic solvents such as water, N-methylpyrrolidone (NMP) and the like, even at high temperature, and can be applied in various fields such as photoelectric materials, anti-
static electricity,
metal corrosion-resistant materials, and the like.