以氯甲基化交联聚苯乙烯(CMCPS)微球为出发物质,首先在催化剂KI存在下,与六次甲基四胺(HMTA)进行Delepine反应,制得氨基化改性的聚苯乙烯微球AMCPS;然后再使微球AMCPS与水杨醛(SA)发生Schiff碱反应,制备了Schiff碱型螯合树脂SACPS微球,采用红外光谱法表征了其化学结构.重点研究了CMCPS微球氨基化改性Delepine反应的影响因素,探讨了反应机理.研究结果表明,催化剂KI对CMCPS微球表面的苄氯基团与HMTA之间的Delepine反应,具有很强的催化作用;使用极性较强的溶剂DMSO及在较高的温度(80℃)下反应,氯甲基转变为氨甲基的效率高;Schiff碱型螯合树脂SACPS对Cu2+离子具有良好的螯合能力.
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