▎ 摘　　要

NOVELTY - The preparation method of nanocomposite hydrogel involves dissolving graphene oxide in organic solvent, then stirring and separating, then adding reversible addition fragmentation chain transfer (RAFT) reagent, stirring, then adding dehydrating agent and catalyst, stirred, removing solvent by rotary evaporation, then washing with dichloromethane, and drying under vacuum, adding graphene oxide surface graft RAFT agent to water, ultrasonically dispersing, then adding initiator, monomer and n-hexadecane, ultrasonically dispersing, then adding emulsifier and stirring. USE - The method is useful for preparing nanocomposite hydrogel (claimed). ADVANTAGE - The method enables simple preparation of nanocomposite hydrogel with excellent molecular weight distribution index of 1.10-1.38. DETAILED DESCRIPTION - The preparation method of nanocomposite hydrogel involves dissolving graphene oxide in organic solvent, then stirring and separating, then adding reversible addition fragmentation chain transfer (RAFT) reagent, stirring at room temperature for 10-20 minutes, then adding dehydrating agent and catalyst, stirred at room temperature for 15-24 hours, removing solvent by rotary evaporation, then washing with dichloromethane, and drying under vacuum to obtain graphene oxide surface graft RAFT agent, adding graphene oxide surface graft RAFT agent to water, ultrasonically dispersing, then adding initiator, monomer and n-hexadecane, ultrasonically dispersing, then adding emulsifier and stirring for 1-1.5 hours, ultrasonically dispersing for 10-15 minutes, heating at 70-80 degrees C, continuously reacting for 2 hours, then adding initiator and monomer, heating at 80-85 degrees C and reacting for 2 hours, cooling to room temperature.