以1,4-二氯甲氧基丁烷为氯甲基化试剂,制备了氯甲基化聚苯乙烯(CMPS),使CMPS的氯甲基与对羟基苯甲醛(HBA)发生亲核取代反应,将苯甲醛(BA)键合在聚苯乙烯侧链,制得改性聚苯乙烯PS-BA;使PS-BA的醛基与3-氨基吡啶(AP)的伯氨基发生席夫碱反应,在聚苯乙烯侧链合成与键合了双齿席夫碱(SB)配基,制得了侧链键合有双齿席夫碱配基的功能化聚苯乙烯PS-SB.采用红外光谱(FTIR)和核磁共振氢谱(1H NMR)对其结构进行了表征.以大分子PS-SB为第一配体,以邻菲罗啉(Phen)为第二配体,与Eu(Ⅲ)离子配位,分别制得了二元和三元高分子-稀土配合物PS-(SB)3-Eu(Ⅲ)和PS-(SB) 3-Eu(Ⅲ)-(Phen),初步探索了配合物的荧光发射性能.实验结果表明,对于CMPS与HBA之间的亲核取代反应,使用极性较强的N,N-二甲基乙酰胺为溶剂比较适宜,80℃为适宜的反应温度.大分子配体PS-SB对Eu(Ⅲ)离子的荧光发射可产生明显的敏化作用,二元和三元高分子-稀土配合物均发射出较强的Eu(Ⅲ)离子的特征荧光.
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