Novel, simple methods are presented directed to the synthesis of
nanofibers of polyaniline and substituted derivatives. The production of
these fibers is achieved via various methods by controlling the
concentration of aniline monomer or substituted aniline derivatives or an
oxidant in the reaction medium and maintaining said concentration at a
level much lower than conventional polyaniline synthesis methods. Methods
are disclosed relating to the use of a permeable membrane to control the
release of a monomer and/or oxidant as well as a bulk polymerization
method.