| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polyarylene-based polymer by a polycondensation in an organic solvent, by which the polymer having a high mol. wt. can safely and simply be obtained without using a azeotropic solvent having high toxicity and dangerousness, such as conventional toluene or benzene, and further the polymer having a high mol. wt. can be obtained, even when a monomer having an ionic group and having water bound thereto is used. SOLUTION: This method for producing the polyarylene-based polymer by polycondensing an aromatic dihalide compound with a dihydric phenol compound or a dihydric thiophenol compound in the presence of an alkali metal compound in an organic polar solvent is characterized by using a solvent which can be mixed with water, is liquid at ordinary temperature, and has a boiling point of≥200°C, and then carrying out a polycondensation reaction at the boiling point of the organic polar solvent or at a temperature near to the boiling point in the flow of an inert gas, while removing the by-produced water on the outside of the reaction system together with the organic polar solvent. COPYRIGHT: (C)2006,JPO&NCIPI
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