METHOD FOR PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN AND RESIN PREPARED BY THE METHOD, AND COMPOUND INCLUDING THE RESIN

摘要

The present invention relates to a method for preparing a wholly aromatic liquid crystalline polyester resin and a wholly aromatic liquid crystalline polyester resin prepared by the method, and a wholly aromatic liquid crystalline polyester resin compound. The method of preparing the wholly aromatic liquid crystalline polyester resin includes: a step (a first temperature increasing step) of increasing the temperature of a reaction mixture including at least one monomer at a first temperature increasing rate up to a first temperature; a step (an isothermal maintaining step) of maintaining the reaction mixture, in which the first temperature increasing step is performed at the first temperature for one hour; and a step (a second temperature increasing step) of increasing the temperature of the reaction mixture, in which the isothermal maintaining step is performed at a second temperature increasing rate.