新型聚酰胺胺-苯甲醛树状大分子的合成及性能研究

Study on Synthesis and Properties of Novel Polyamidoamine-Phenyl Aldehyde Dendrimers

以乙二胺为中心核、丙烯酸甲酯为支化单体、苯甲醛为端基功能团,采用发散法合成了一种新型的聚酰胺胺-苯甲醛树状大分子,使用FTIR、~1HNMR和^(13)CNMR表征了合成产物的分子结构,结果与设计的一致。该树状大分子能溶解于三氯甲烷,不溶于水、环己烷。对其荧光性能进行了研究,结果表明,溶液中的Fe^(3+)对聚酰胺胺-苯甲醛树状大分子的荧光具有猝灭效应,聚酰胺胺-苯甲醛树状大分子的荧光强度随分子代数的增加而增加。聚酰胺胺-苯甲醛树状大分子有望成为一种新型的荧光功能材料。

A novel kind of polyamidoamine-phenyl aldehyde dendrimers is synthesized by the divergent method with ethylenediamine as center core, methyl acrylate as branch monomer and phenyl aldehyde as terminated functional group. The molecular structure of polyamidoamine-phenyl aldehyde dendrimers is characterized by FTIR, ^1 HNMR and ^13 CNMR and results agree to that of the design. These dendrimers can dissolve in chloroform hut not in water and eyclohexane. The fluorescent properties of polyamidoamine-phenyl aldehyde dendrimers are studied. The results show that the fluorescence of polyamidoamine-phenyl aldehyde dendrimers is quenched by Fe^3＋ in the solution, and the fluorescent intensity of polyamidoamine-phenyl aldehyde dendrimers increases with their molecule generation. And polyamidoamine-phenyl aldehyde dendrimers can be used as a novel fluorescent functional material.