萘酰亚胺树枝状聚（胺-酯）对染料的荧光增强作用研究

The Fluorescence Enhancement of Dendritic Poly(amine-ester) with Naphthalimide to Dyes

摘要:

以乙二胺（EDA）、三羟甲基丙烷三丙烯酸酯（TMPTA）和l,8-萘二甲酸酐为原料，合成了萘酰亚胺树枝状聚（胺-酯） [PAE-1,8-NL]。研究PAE-1,8-NL与染料（曙红B、罗丹明B、达旦黄、亚甲基蓝和甲基橙）组成的能量转移体系中，染料荧光强度的变化。实验结果表明，PAE-1,8-NL作用于染料的DMF溶液，荧光强度增强；且随着PAE-1,8-NL浓度的增大，荧光强度先增强后减小。增强作用大小为：亚甲基蓝 > 罗丹明B > 甲基橙 > 曙红B > 达旦黄。在DMF、丙酮和乙腈溶剂中，PAE-1,8-NL对染料的荧光强度增强作用不同。

Abstract:

Abstract: Poly(amine-ester)-1,8-naphthalimide dendrimer (PAE-1,8-NL) is synthesized from ethylenediamine (EDA), trimethylolpropane triacrylate (TMPTA) and 1,8-naphthalic anhydride. In the energy transfer systems of PAE-1,8-NL and dyes (Eosin B, Rhodamine B, Titan yellow , Methylene blue and Methyl orange) , The changes of fluorescence intensity were studied. The results show that the fluorescence of dyes increased when PAE-1,8-NL added the dyes DMF solutions. The fluorescence of dyes is increased and then decreased by PAE-1,8-NL. The rank of their fluorescence enhancement ability was Methylene blue > Rhodamine B > Methyl orange > Eosin B > Titan yellow. In DMF, acetone and acetonitrile solvent respectively, the different fluorescence intensity of the effect of PAE-1,8-NL on dyes.