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以乙二胺为中心核,丙烯酸甲酯为支化单体,间苯氧基苯甲醛为端基官能团合成了1.0G和4.0G两种聚酰胺胺-间苯氧基苯甲醛(PAMAM-PBZA)树状大分子,并用FTIR和1HNMR对产物结构进行了表征。通过对其荧光性能的研究表明:溶液中的Ce4+、Zn2+和Cu2+对荧光强度都有较显著的增强作用。另外,随着金属离子和PAMAM-PBZA树状大分子摩尔比的增加,其混合溶液的最大发射峰位置都出现了蓝移现象,尤其是1.0 G PAMAM-PBZA的蓝移现象更加显著。随着PAMAM-PBZA树状大分子浓度的增加,其荧光强度逐渐增强,其中1.0 G产物的荧光发射峰出现了很显著的红移现象。
Polyamidoamine-m-phenoxybenzaldehyde (PAMAM-PBZA) was synthesized with ethylenediamine as the core, methyl acrylate as the branched monomer and m-phenoxybenzaldehyde as the terminal functional group. ) Dendrimer, and the product structure was characterized by FTIR and 1HNMR. The fluorescence performance of Ce4 +, Zn2 + and Cu2 + in solution shows a significant enhancement on the fluorescence intensity. In addition, as the molar ratio of metal ions to PAMAM-PBZA dendrimer increases, blue shift occurs in the maximum emission peak position of the mixed solution. In particular, the blue shift of 1.0 G PAMAM-PBZA is more pronounced. With the increase of PAMAM-PBZA dendrimer concentration, the fluorescence intensity of PAMAM-PBZA dendrimer gradually increased, and the fluorescence emission peak of 1.0 G product showed a significant red shift.