TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Metal: The transition metal contains copper, iron, cerium, molybdenum or chromium.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Compound: The sulfoxide is chosen from dimethyl sulfoxide, di-n-butyl sulfoxide, tetramethylene sulfoxide and methyl phenyl sulfoxide. The polyhydric alcohol or polyol is chosen from ethylene glycol, propylene glycol, butanediol, neopentane glycol, diethylene glycol, triethylene glycol, methyl pentanediol, hexanediol, trimethylol propane, glycerol, ethyl hexanediol, hexane triol, polyethyleneglycol, polypropylene glycol, polyoxypropylene triol, polytetramethylene glycol, sorbitol, and their derivative. The organic acid of anionic surfactant contains sulfonic acid or esterified sulfuric acid. The phenol derivative is chosen from nitrophenol, cyano phenol, hydroxybenzoic acid, hydroxy phenol, aceto phenol or their derivative. The nitro compound is aromatic nitro carboxylic acid, nitrobenzene, their derivative or their mixture.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The chemical oxidation polymerization of ethylene dioxythiophene is carried out using persulfate or inorganic acid salt containing transition metal. Polyethylene dioxythiophene is prepared, and anionic surfactant which dissociates and produces organic acid ion, is prepared. The high boiling point solvent is prepared. An oxidizing agent containing inorganic acid having transition metal, is prepared, and electroconductive composition is manufactured. Monomer is chemically polymerized using the oxidizing agent. The polymerization medium is water. Ethylene dioxythiophene derivative is prepared, and anionic surfactant which dissociates and produces organic acid ion, is prepared. The high boiling point solvent is prepared. The oxidizing agent containing inorganic acid having transition metal, is prepared. Phenol derivative or nitro compound is prepared, and monomer is chemically polymerized using the oxidizing agent to obtain electroconductive composition.