烷基化树枝状聚（胺-酯）与染料分子的相转移研究

Phase Transfer of Interaction on Alkylation of Dendritic Poly(amine-ester) and Dye Molecules

摘要:

以乙二胺（EDA）、三羟甲基丙烷三丙烯酸酯（TMPTA）和月桂酰氯为原料，合成了聚（胺-酯）-月桂酸树枝状大分子[PAE-LA]，产率为56.09%。用IR和1HNMR表征了它的结构；并考察了PAE-LA浓度及水相pH对染料相转移率的影响。实验结果表明，染料的相转移率随PAE-LA浓度的增大而增大。在20mL浓度为 1.2 ?0-5 mol/L的染料（达旦黄或甲基橙或二甲酚橙）水溶液与20mL浓度为1.2 ?0-5 mol/L的PAE-LA氯仿溶液的混合液中，当水相中pH=2时，染料达旦黄、甲基橙、二甲酚橙的转移率达到最大值（83.75%、81.96%、57.35%）。

Abstract:

Poly(amine-ester)-lauric acid dendrimer (PAE-LA) is synthesized from ethylenediamine (EDA), trimethylolpropane triacrylate (TMPTA) and Lauroyl chloride, the yield is 56.09%. The structure of PAE-LA is charactracterized by IR and 1HNMR. The effects of PAE-LA concentraction and water phase pH on the phase transfer rates of dyses(such as methyl orange, titan yellow and xylenol orange) were investigated. The results show that the phase transfer rate of dyes increase with the increase of the concentraction of PAE-LA. In the mixture with 20 mL PAE-LA- chloroform solution1.2 ?0-5 mol/L (c))，and 20 mL dye(methyl orange, titan yellow ,or xylenol orange) water solution(about1.200?0-5 mol/L(c)) ,when water phase pH is 2, the phase transfer rates of titan yellow, methyl orange, xylenol orange reach the maximum (83.75%、81.96%、57.35%) respectively.