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leafemma

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[求助] 叔胺单体与含叔胺的共聚物的分离

本人用叔胺与苯乙烯进行共聚,分子量为3万左右,反应结束时叔胺仍残留,文献报道用过量甲醇洗2次即可除去残留的叔胺,但本人将聚合液倾入大量甲醇时发现全部溶解无析出(室温或冷冻静置3d)。将其甲醇溶液旋蒸得固体,测H NMR显示叔胺存在。从正己烷到甲醇,共聚混合物和纯的叔胺均溶解,水不溶。望高人指点!!
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