▎ 摘　　要

NOVELTY - A dispersion agent comprises electrically active oligoaniline derivative. The oligoaniline derivative forms ( pi )-( pi ) graphene bonding. USE - Dispersion agent is used for graphene dispersion (claimed). ADVANTAGE - The graphene dispersion having high dispersion degree with respect to dispersion medium and yield, and excellent dispersion stability, redispersion property and chemical property is prepared by simple method, using the dispersion agent. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene dispersion, which comprises dispersion agent, fluid-like dispersion and dispersion medium including water, organic solvent and/or resin.