The crude products could be purified by extractions with ethyl alcohol and decalin to remove the unreacted polypropylene glycol and dihydroxy-terminated polystyrene, respectively.
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美
释义
粗产物可分别用乙醇及十氢茶萃取,以除去未反应的聚丙二醇及端双羟基聚苯乙烯。
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