▎ 摘　　要

NOVELTY - Manufacture of ester functional group-containing graphene compound involves preparing graphene oxide using graphene having epoxy group, hydroxyl group and/or acid group, reacting graphene oxide with thionyl chloride, and then reacting with alcohol chosen from primary alcohol, secondary alcohol, tertiary alcohol, benzyl alcohol and substituted primary alcohol. USE - Manufacture of ester functional group-containing graphene compound used for antimicrobial composition (claimed). ADVANTAGE - The method efficiently and economically provides ester functional group-containing graphene compound having excellent dispersibility in solvent. The antibacterial composition has excellent antimicrobial activity against gram positive bacteria or gram-negative bacteria e.g. Escherichia coli.