▎ 摘　　要

NOVELTY - Manufactured chloride of graphene oxide, manufactured thermotropic liquid crystal compound containing epoxy groups at terminals, N,N-dimethylformamide solution and pyridine catalyst are reacted in a reactor and the obtained product is precipitated using water. The obtained precipitate is decompressed and extracted. The extracted product is washed 2-3 times using anhydrous ethanol. The washed product is dried to obtain graphene oxide-grafted thermotropic crystalline compound containing epoxy groups at terminals. USE - Manufacture of graphene oxide-grafted thermotropic liquid crystal compound. ADVANTAGE - The method enables economical and pollution free manufacture of graphene oxide-grafted thermotropic liquid crystal compound, using wide raw material sources by simple process. DETAILED DESCRIPTION - Terephthaloyl chloride (2-10) (in g) and para-hydroxybenzoate (1.5-7.5) are reacted with N,N-dimethylformamide solvent (10-50 ml) at 50-90 degrees C in presence of pyridine catalyst (0.05-0.1) for 4-8 hours. The obtained product is sequentially reacted with thionyl chloride (6-30 ml) for 12-48 hours, diethylene glycol (1-5) for 4-8 hours, and epoxy propyl alcohol (0.8-4) and dibutyltin dilaurate (0.1-0.5) for 4-8 hours. The obtained is precipitated using water, and the precipitate is decompressed and extracted, and is washed 2-3 times using anhydrous ethanol and dried to obtain thermotropic liquid crystal compound containing epoxy groups. Graphite oxide (0.1-1) is reacted with N,N-dimethylformamide (50-100 ml) for 30-120 minutes using ultrasonic waves to form uniform dispersed graphene oxide mixed solution. The obtained solution is further reacted with thionyl chloride (10-50 ml) at 50-80 degrees C for 12-48 hours. The obtained product washed 2-3 times using anhydrous ethanol, and dried to obtain chloride graphene oxide. The obtained product (0.1-1) is ultrasonically dispersed in N,N-dimethylformamide (20-50 ml). The obtained product is introduced into a reactor provided with a stirrer, a thermometer and condenser. The thermotropic liquid crystal compound (5-50) dissolved in N,N-dimethylformamide solution (10-100 ml) and pyridine catalyst (0.05-0.1) are further reacted at 60-90 degrees C within the reactor for 8-12 hours. After the reaction, the obtained product is precipitated using water. The obtained precipitate is decompressed and extracted. The extracted product is washed 2-3 times using anhydrous ethanol. The washed product is dried to obtain graphene oxide-grafted thermotropic crystalline compound containing epoxy groups at terminals. The graphite oxide raw material is chemically pure flake graphite and is prepared using Hummers oxidation.