Preparation of conductive polymers from stabilized precursor sol

Details Preparation of conductive polymers from stabilized precursor sol Preparation of conductive polymers from stabilized precursor sol

1999-11-10

2000-10-24

Gupta, Yogendra

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

252512, 252500, 42721332, 42721334, 427 79, H01B 100

Patent

active

061363723

ABSTRACT:
Conductive polymers are prepared from a stabilized solution containing a monomer, an Fe(III) oxidizing agent, and a mixed solvent. The solvents are selected to stabilize the Fe(III) oxidizing agent and monomer in solution while allowing highly conducting polymers to be produced upon evaporating the lower-boiling solvent. The higher-boiling solvent does not appreciably complex with Fe(III), while the lower-boiling solvent forms a weak complex with Fe(III). The mixed-solvent system of the present invention may be used for preparing a conductive polymer counter electrode in a solid tantalum capacitor by polymerizing the monomer inside a porous tantalum pellet.

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