University of Pennsylvania

You Nan Xia

Alan G MacDiarmid

Joanna M Wiesinger

Methods for preparing conductive polyanilines

Methods for preparing conductive polyaniline forms are provided in which the conductivity of the polyaniline form can be substantially increased by contacting the polyaniline form with a phenolic compound that acts as a secondary dopant for the polyaniline. Generally, a doped polyaniline solution is prepared in which the polyaniline is initially doped by a protonic acid and a doped polyaniline form is then prepared from this solution. The polyaniline form can then be contacted with the phenolic compound in either its vapor or liquid state, however it is preferred that the polyaniline form be maintained in either the gelatinous or solid state during the contacting step. The conductivity of the polyaniline form can be raised by a factor of up to about 500-1000.

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Cambridge, MA, United States of America

You Nan Xia