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weicomeon

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[求助] 问题求教

照文献做了一个聚合物,反应完成后得到了棕色溶液,文献中用了这种方法处理:A brown colored water soluble PAIPA
was formed. The reaction mixture was cooled down after 24h of
reaction. The polymer was then separated from the aqueous solution by a non-solvent separation method. The aqueous polymer
solution was taken in excess toluene[/u
], sonicated for 10min and the
polymer was then separated using a separating funnel, and dried
in a vacuum oven at 100 ◦C for 48h.     请问各位,加下划线部分所说的通过非溶剂方法分离聚合物的水溶液是怎么操作的       急求,拜托各位了
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