| abstract |
PROBLEM TO BE SOLVED: To provide a method for efficiently producing an industrially useful cyclic polyarylene sulfide in an economical and simple manner in a short time. [Solving Means] Sulfiding agent and dihalogenated aromatic compound In an organic polar solvent to produce a cyclic polyarylene sulfide, wherein 1.25 liters or more of the organic polar solvent is used per 1 mol of sulfur atom of the sulfidizing agent, and the reaction mixture is usually used. A process for producing a cyclic polyarylene sulfide, characterized by heating beyond the reflux temperature in pressure. [Selection figure] None |