| 摘要 |
<p>Preparing poly(aryl ether)sulfone particles from a poly(aryl ether)sulfone solution, comprises subjecting the poly(aryl ether)sulfone solution to a separation step for the formation of drops of the poly(aryl ether)sulfone solution and supplying the resulting drop in a turbulent coagulation bath for precipitation and formation of the poly(aryl ether)sulfone particles. The solvent of the poly(aryl ether)sulfone solution comprises N-methylpyrrolidone, N-ethyl pyrrolidone, dimethylformamide, dimethyl sulfoxide, 1,2-dichlorobenzene, sulfolane and/or hexamethylphosphoric acid triamide.</p> |
