▎ 摘　　要

NOVELTY - Graphene oxide-aromatic copolyester comprises (in pts.wt.): graphene oxide (2-10), aliphatic dihydric alcohol (40-65), dibasic acid or dimethyl ester (32-57), catalyst (0.1-2) and stabilizing agent (0.1-1.8). USE - Graphene oxide-aromatic copolyester used in food and medicine. ADVANTAGE - The graphene oxide-aromatic copolyester is biodegradable and eco-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene oxide-aromatic copolyester, which involves: (A) pre-treating graphene oxide and then mixing the graphene oxide into water; (B) ultrasonically dispersing the mixed material for 20-50 minutes and then adding aliphatic dihydric alcohol to the dispersed material; (C) stirring the obtained material at 155-180 degrees C and then washing the stirred material with distilled water to obtain the graphene oxide-aliphatic dihydric alcohol solution; (D) adding dibasic acid or dimethyl ester to the graphene oxide-aliphatic dihydric alcohol solution and then adding the obtained material to reaction vessel in presence of nitrogen at 170-210 degrees C; (E) adding catalyst to the obtained material and then performing ester exchange reaction for conversion of more than 90% material; (F) adding stabilizing agent to the obtained material at 235-245 degrees C and then performing condensation polymerization under regulating vacuum degree of 50-100 Pascal for 3.5-6 hours; and (G) passing nitrogen to the obtained material at normal pressure and then discharging the obtained material to obtain desired product.