| 摘要 |
<p>A method for producing a polyarylene sulfide includes: (a) a polymerization step for polymerizing, in an organic amide solvent, a dihalo aromatic compound and at least one type of sulfur source selected from a group comprising an alkali metal sulfide and an alkali metal hydrosulfide; (b) a separation step for separating polymers from a reaction solution containing polymers produced after the polymerization step; (c) a cleaning step for cleaning the polymers, as desired, by using at least one type of cleaning solution selected from a group comprising water, an organic solution, and a mixed solution of water and an organic solvent; and (d) an aqueous oxidizing solution treatment step for treating the polymers by bringing the polymers into contact with an aqueous oxidizing solution.</p> |
