▎ 摘　　要

NOVELTY - Nitrogen-rich groups functionalized graphene oxide (I) is new. USE - (I) is useful as reactive flame retardant in modification of epoxy resin materials (claimed). ADVANTAGE - (I): does not contain halogen elements; is environmentally friendly flame retardant; exhibits flame retardant effect in condensed phase and gas phase; and improves thermal stability of epoxy resin. The method is simple and convenient; and has mild reaction conditions. DETAILED DESCRIPTION - Nitrogen-rich groups functionalized graphene oxide of formula (I) is new. A = 4-((10-oxo-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-yl)(1H-1,2,4-triazol-3-ylamino)methyl)phenyl. An INDEPENDENT CLAIM is also included for preparation of (I).