Water-dispersible electrically conductive fluorine-containing polyaniline compositions for lithography

A method, comprising:

• agitating a mixture comprising i) a polymeric acid comprising a plurality of sulfonic acid groups, ii) at least one fluorine-containing aniline monomer, iii) at least one non-fluorine-containing aniline monomer, iv) an oxidant, and v) water, thereby forming a polyaniline copolymer;
• and
• precipitating together the polyaniline copolymer and the polymeric acid, thereby forming a water dispersible composition;
• wherein
• the polyaniline copolymer has a weight average molecular weight of at least 30,000,
• the polyaniline copolymer comprises i) about 10 mol % to about 15 mol % of a fluorine-containing first aniline repeat unit based on total moles of repeat units of the polyaniline copolymer and ii) a second aniline repeat unit comprising no fluorine,
• the sulfonic acid groups of the polymeric acid are present in the composition in a molar amount greater than or equal to total moles of repeat units of the polyaniline copolymer, and
• the composition has a conductivity of at least 0.0001 S/cm.

A method, comprising:

• agitating a mixture comprising i) a first polymeric acid, ii) at least one fluorine-containing aniline monomer, iii) at least one non-fluorine-containing aniline monomer, iv) an oxidant, and v) water, thereby forming a second mixture comprising a polyaniline copolymer and the first polymeric acid;
• isolating the polyaniline copolymer from the first polymeric acid;
• and
• combining the polyaniline copolymer with a second polymeric acid comprising sulfonic acid groups, thereby forming a water dispersible composition;
• wherein
• the polyaniline copolymer has a weight average molecular weight of at least 30,000,
• the polyaniline copolymer comprises i) about 10 mol % to about 15 mol % of a fluorine-containing first aniline repeat unit based on total moles of repeat units of the polyaniline copolymer and ii) a second aniline repeat unit comprising no fluorine,
• the sulfonic acid groups of the second polymeric acid are present in the composition in a molar amount greater than or equal to total moles of repeat units of the polyaniline copolymer, and
• the composition has a conductivity of at least 0.0001 S/cm.