| 摘要 |
<p>Processing polymer solution comprising N-methyl-2-pyrrolidone and a polymer, comprises hydrogenating the polymer solution using hydrogen in presence of a hydrogenation catalyst. Independent claims are also included for: (1) the product obtained by the above method; (2) producing polyarylene ether, comprising (A) carrying out polymerization reaction for preparing polyarylene ether, (B) removing inorganic components from the solution, (C) processing the solution by the above method, (D) producing polyarylene ether beads from the solution by separating into a precipitation bath, and (E) extracting and drying the polyarylene ether beads; and (3) the polyarylene ether beads obtainable by the above method, where a molding produced from the polyarylene ether beads, exhibits a yellowness index of 20-79, measured according to DIN 6167, and a soluble content in dimethylacetamide of 92-99.5 wt.%, after thermal exposure to 400[deg] C for 1 hour.</p> |
