Patent ID: 8691117

Claim:
A method of preparing an organic solvent-dispersible conductive polymer adapted to be easily dispersed in an organic solvent, comprising chemically polymerizing a monomer represented by Formula 1 below using a solution of an oxidant in a solvent in presence of a phosphate-based compound represented by Formula 2 below as a dopant: wherein R 1 and R 2 together form alkylene, alkenylene, alkenyloxy, alkenyldioxy, alkynyloxy or alkynyldioxy of a 3- to 8-membered alicyclic or aromatic ring, or each are hydrogen, halogen, C 1˜15 alkyl, alkoxy, carbonyl or a hydroxyl group, and X which is a hetero atom is selected from the group consisting of sulfur (S), oxygen (O), selenium (Se) and NH; and wherein R 3 and R 4 each are any one selected from the group consisting of C 1˜20 alkyl, isoalkyl, alkoxy, alkoxyalkyl, alkylsulfonyl, alkoxysulfonyl, alkylsilane and alkoxysilane.