NOVELTY - An composition comprises aromatic carbonyl compound having carbonyl group as reactive site, aromatic amine and heterocyclic hetero atom having amino groups as reactive site, and aromatic heterocyclic compound having unmodified ( alpha )-carbon as reactive site. When aromatic reaction component is aromatic amine, then the aromatic carbonyl compound is aromatic polycarbonyl compound having carbonyl groups. When aromatic reaction component is aromatic heterocyclic compound, then the aromatic carbonyl compound is aromatic aldehyde compound having formyl groups.    USE - Composition is used for conductive polymer for electronic device (all claimed), conductive paint and electroconductive coating agent. Uses include but are not limited to touch panel, electronic paper, semiconductor, organic or inorganic electroluminescence, liquid crystal display and solar cell.    ADVANTAGE - The composition has excellent stability, and is prepared by a simple process. The conductive polymer obtained by the composition has excellent electroconductivity for a long period of time, water resistance, solvent resistance and heat resistance. The electronic device obtained by the conductive polymer has excellent durability.    DETAILED DESCRIPTION - An composition comprises aromatic carbonyl compound having carbonyl group as reactive site, aromatic amine and heterocyclic hetero atom having amino groups as reactive site, and aromatic heterocyclic compound having unmodified ( alpha )-carbon as reactive site. When aromatic reaction component is aromatic amine, then the aromatic carbonyl compound is aromatic polycarbonyl compound having carbonyl groups. When aromatic reaction component is aromatic heterocyclic compound, then the aromatic carbonyl compound is aromatic aldehyde compound having formyl groups. When the number of the formyl groups in 1 molecule of aromatic aldehyde compounds is 2 or more, number of the ( alpha )-carbon in 1 molecule of aromatic heterocyclic compounds is 3 or more. When the number of the formyl groups in 1 molecule of aromatic aldehyde compounds is 2, number of the ( alpha )-carbon sites in 1 molecule of aromatic heterocyclic compounds is 2 or more. INDEPENDENT CLAIMS are included for the following:    (1) conductive polymer; and    (2) electronic device.