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Duke250

金虫 (小有名气)

[求助] 请问聚酰胺酸溶于NMP和芳香烃中怎么提取?

购买了某种聚酰胺酸质量分数13%的溶于NMP(80%)和芳香烃(20%)的聚酰胺酸,需要-20°保存。我想用聚酰胺酸溶于DMAc中使用。怎么除去NMP和芳香烃?-20°保存又是为什么呢?
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