▎ 摘　　要

NOVELTY - High-performance liquid crystal polymer has 40-80 wt.% of monomer units of 2-acetonaphthanone derivative (I-II), 10-30 mol.% monomer unit of 1,1'-benzene-1,4-diyldiethanone derivative (III), is 0-20 mol.% monomer unit of carbonyl derivative of formula (IV) and 10-30 mol.% of monomer unit of oxide derivative (V). USE - High-performance liquid crystal polymer for high-performance liquid crystal polymer fibers (claimed). ADVANTAGE - The high-performance liquid crystal polymer utilizes intermolecular pi-pi interaction, dipole interaction and hydrogen bond interaction, as well as carbon nanotubes and graphene oxide containing polar groups to construct a liquid crystal polymer with strong interchain interaction, and by improving the cohesion of the liquid crystal polymer, the purpose of improving the molding processing and performance defects of the liquid crystal polymer is achieved. DETAILED DESCRIPTION - High-performance liquid crystal polymer has 40-80 wt.% of monomer units of 2-acetonaphthanone derivative of formulae (I-II), 10-30 mol.% monomer unit of 1,1'-benzene-1,4-diyldiethanone derivative of formula (III), is 0-20 mol.% monomer unit of carbonyl derivative of formula (IV) and 10-30 mol.% of monomer unit of oxide derivative of formula (V). R1 and R2=no value given. INDEPENDENT CLAIMS are included for the following: 1. a method for preparing high-performance liquid crystal polymer, which involves adding monomers of formulae (I-V) monomer units, acetic anhydride, nanomaterials and catalysts to the reaction vessel for acetylation treatment to obtain a mixture, or acetylating the hydroxyl-containing monomer, and then adding the remaining monomer to the reaction vessel to obtain a mixture, adding an alkali metal catalyst to the mixture to carry out a polymerization reaction, and obtaining a liquid crystal polymer after the reaction is completed; and 2. a method for using high-performance liquid crystal polymer for high-performance liquid crystal polymer fibers by melt spinning involves feeding liquid crystal polymer into the screw spinning machine for melt spinning, and arranging a melt booster pump in front of the spinneret on the screw spinning machine, providing spinning shaft below the spinneret with a stepped two-stage temperature changing area, and winding the fibers after exiting the shaft to prepare primary fibers, and sending primary fibers into the heating box for heat treatment, and obtaining finally high-performance liquid crystal polymer fibers.