Electrically conductive polyaniline
AssigneeThe Regents of the University of California
InventorsPaul Smith, Alan J. Heeger, Yong Cao, Jin-Chih Chiang, Alejandro Andreatta
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Abstract
Polyanilines are provided that are soluble and that form crystaline solids upon precipitation. The solid polyanilines are electrically conductive, soluble, and can be fabricated into various shaped articles for use in, for example, batteries, electrodes, photovoltaic cells, semi-conductor devices and the like.
Claims23
A liquid composition comprising (i) dissolved polyaniline having a minimum molecular weight of about 5,000, and (ii) a strong acid capable of dissolving said polyaniline.
A solid polyblend composition comprising:
- i) an acid-soluble crystalline polyaniline, said polyaniline being comprised of monomer units, said monomer units in any of their oxidation states which allow for the composition to be electrically conductive, said monomer units having the structure:
- ##STR2## wherein R.sub.1 is H or alkyl, and R.sub.2 -R.sub.6 are, independently, H, alkyl, aralkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro;
- or a salt of said monomer;
- and
- ii) an amount of a second polymer selected from the group consisting of polymers which are soluble in strong acids.
An electrode comprising a solid composition, said solid composition comprising a soluble crystalline polyaniline, said polyaniline comprised of monomer units having the structure:
- ##STR3## wherein R.sub.1 is H or alkyl and R.sub.2 -R.sub.6 are, independently, H, alkyl, aralkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro;
- or a salt of said monomer;
- wherein said polyaniline is electrically conductive.
A semiconductor device comprising a film, said film comprising a soluble crystalline polyaniline, said polyaniline comprising monomer units having the structure:
- ##STR4## wherein R.sub.1 is H or alkyl, and R.sub.2 -R.sub.6 are, independently, H, alkyl, aralkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro;
- or a salt of said monomer wherein the polyaniline is electrically conductive.
An electronic color display device comprising a film, said film comprising a soluble crystalline polyaniline, said polyaniline comprising monomer units having the structure:
- ##STR5## wherein R.sub.1 is H or alkyl, and R.sub.2 -R.sub.6 are, independently, H, alkyl, aralkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro;
- or a salt of said monomer;
- wherein said polyaniline is electrically conductive.
Dependencies are inferred from the claim text.