A process for producing a polyetherketoneketone having an improved crystallization rate and polyether ketone ketone thereof

摘要

The present invention relates to a polyether ketone ketone (hereinafter, also referred to as PEKK) manufacturing method and a polyether ketone ketone produced thereby, more specifically, by adding 1,4-diphenyl benzene to the monomer diphenyl oxide , In the polymerization reaction, by improving the crystallization rate, the injection molding processability improved polyether ketone ketone manufacturing method and relates to a polyether ketone ketone produced thereby. According to the present invention, (a) at least one selected from 1,4-diphenoxy benzene and 1,4-bis(4-phenoxybenzoyl)benzene (EKKE) in the reactor, terephthaloyl chloride (TPC), Preparing a reaction solution by dissolving in isophthaloyl chloride (IPC) and a liquid reaction medium at the same time; (b) lowering the temperature of the reaction solution and then adding a catalyst; And (c) a method for producing a polyether ketone ketone (PEKK), characterized in that it comprises the step of blowing and stirring the inert gas directly into the reaction solution after the catalyst is introduced. Therefore, by increasing the proportion of ether and terephthaloyl chloride in the repeating unit of the polymerization chain, the effect of improving the crystallization rate of the resin in the mold during PEKK resin injection processing is provided.