Patent ID: 7897082

Claim:
A method for spinning polyaniline fiber, comprising the steps of: adding between 6 and 14 mass % of a mixture of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPSA) and polyaniline containing between 2 and 12 mass % of water to dichloroacetic acid (DCAA), such that there are between 30 and 100 molecules of AMPSA per 100 aniline repeat units of the polyaniline, forming thereby a composition, wherein during said step of addition the temperature of the composition does not rise above about 35° C.; continuously extruding the composition through a spinneret into a coagulant, thereby forming a polyaniline fiber; and exchanging the AMPSA with a selected dopant molecule after said step of continuously extruding the composition into the coagulant.