树枝状聚（胺-酯）的功能化及其荧光性能研究

Study on functionalization and fluorescence properties of dendritic poly(amine-ester)

摘要:

以乙二胺（EDA）、三羟甲基丙烷三丙烯酸酯（TMPTA）和苯甲酸（BZA）为原料，合成了聚（胺-酯）-苯甲醛树枝状大分子（PAE-BZA），产率为60.82%。用IR、1H-NMR和13C-NMR测定了它的结构。并测定了PAE-BZA的荧光性能，考察了不同浓度，不同溶剂及Sn2 对其荧光性能的影响。结果表明：丙酮为溶剂时，0.5mmol/L PAE-BZA荧光最强；以丙酮、甲醇、DMSO、DMF和乙醇等为溶剂，PAE-BZA在乙醇中的荧光最强。Sn2 对PAE-BZA的荧光强度具有先减弱后增强作用，且络合顺序是由外围的N原子逐步向内部的N原子络合。

Abstract:

Poly(amine-ester)-benzaldehyde dendrimer(PAE-BZA) was synthesized from ethyl enediamine (EDA), trimethylolpropane triacrylate (TMPTA) and benzaldehyde (BZA), the yield was 60.82%. The structure of PAE-BZA was characterized by IR、1H-NMR and 13C-NMR. The effects of different concentrations, different solvents and Sn2 on fluorescence properties of the dendrimer were studied. When acetone was solvent, fluorescence of 0.5mmol/L PAE-BZA was strongest. Take acetone, the methyl alcohol, DMSO, DMF and ethyl alcohol as solvent, fluorescence of PAE-BZA in ethyl alcohol was strongest. Fluorescence of PAE-BZA was first decreased then increased by Sn2 in the solution, and the complexing order of N atom was from periphery to internal.