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Synthesis of a New Type Diethyl-amine Anion Exchange Resins Based on Crosslinked Polystyrene
Author(s): 
Pages: 610-615
Year: Issue:  4
Journal: JOURNAL OF CHEMICAL ENGINEERING OF CHINESE UNIVERSITIES

Keyword:  聚苯乙烯阴离子交换树脂Friedel-Crafts反应氯乙酰化反应叔胺型树脂;
Abstract: 通过Friedel-Crafts反应在交联聚苯乙烯微球上进行氯乙酰化反应引入氯乙酰基,再经胺化得到弱碱性叔胺型阴离子交换树脂.该方法避免了使用氯甲醚等致癌物质,也避免了二次交联及多取代等副反应.今讨论了不同溶剂对胺化反应的影响,并用数学软件Statistica 6.0对反应时间、反应温度、试剂用量等条件进行了优化,得到的最佳条件为:溶剂量5 mL·g-1,温度70℃,二乙胺与氯乙酰基摩尔比12:1,反应时间2 h.担载量可达3.5 mmol·g-1树脂.
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