▎ 摘　　要

NOVELTY - The method comprises dissolving an acid (10 g) in 50 mL of 1, 4-dioxane, adding reversible addition fragmentation chain transfer (RAFT) polymerization of pyrene end-based copolymer as a reagent (18.2 mg 6.94x 10-5 mol), adding azodiisobutyronitrile (AIBN, 3.8 mg 2.31x 10-5 mol) as an initiator, infusing nitrogen into a system for 60 minutes to remove oxygen in a reaction system, purifying an obtained polymer with anhydrous and 1, 4-dioxane, and dissolving an certain proportion of obtained polymer and acrylic ester at a in the 1, 4-dioxane. USE - The method is useful for preparing green graphene. ADVANTAGE - The method is capable of economically preparing the green graphene with less defects, desired size and increased conductivity in an environment-friendly manner. DETAILED DESCRIPTION - The method comprises dissolving an acid (10 g) in 50 mL of 1, 4-dioxane, adding reversible addition fragmentation chain transfer (RAFT) polymerization of pyrene end-based copolymer as a reagent (18.2 mg 6.94x 10-5 mol), adding azodiisobutyronitrile (AIBN, 3.8 mg 2.31x 105 mol) as an initiator, infusing nitrogen into a system for 60 minutes to remove oxygen in a reaction system, purifying an obtained polymer with anhydrous and 1, 4-dioxane, dissolving an certain proportion of obtained polymer and acrylic ester in the 1, 4-dioxane, adding proper amount of initiator azodiisobutyronitrile through nitrogen gas for 60 minutes in the system at 65-80 degrees C for 7 hours placed in a constant temperature oil bath, further purifying the copolymer with anhydrous and 1, 4-dioxane, adding 1-pyrene methanol (0.18 g 7.76 x 10-4 mol) and the copolymer to dissolve in the 1, 4-dioxane (10 mL), adding catalytic agent dicyclohexyl carbodiimide (0.226 g 1.10 x 10-3 mol) and 4-dimethylamino pyridine (13 mg 1.10x 10-4 mol), stirring catalytic agent dicyclohexyl carbodiimide and 4-dimethylamino pyridine at room temperature for 24 hour, and preparing a single layer graphene by dissolving pyrene terminal of amphiphilic polymer (50 mg) in water or nitrogen dimethylformamide, then adding graphite powder (10 mg), mixing them by a liquid ultrasonic treatment for 30 minutes, stewing it using a ultrasonic cell crusher treatment tank, centrifuging a upper layer uniform solution (5000 rpm) to obtain a single layer graphene macromolecule composite material, performing nitrogen environment under annealing treatment at 700 degrees C for 2 hours and observing the prepared graphene monolayer structure by a transmission electron microscopy to measure a conductivity. The RAFT reagent and AIBN are not fixed, and a weight ratio of RAFT/AIBN is 2-8.