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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。结果表明,染料的相转移率随PAE-LA浓度的增大而增大。在20 mL浓度为1.2×10-5mol/L的染料(达旦黄或甲基橙或二甲酚橙)水溶液与20 mL浓度为1.2×10-5mol/L的PAE-LA氯仿溶液的混合液中,当水相中pH=2时,达旦黄、甲基橙、二甲酚橙的相转移率分别达83.75%、81.96%、57.35%。
Poly (amine-ester) -lauric dendrimer (PAE-LA) was synthesized from ethylenediamine (EDA), trimethylolpropane triacrylate (TMPTA) and lauroyl chloride with a yield of 56.09 %. Its structure was characterized by IR and 1HNMR. The effects of PAE-LA concentration and pH on the phase transfer rate were also investigated. The results showed that the phase transfer rate of dye increased with the increase of PAE-LA concentration. In 20 mL of a 1.2 × 10 -5 mol / L aqueous solution of dye (dadan yellow or methyl orange or xylenol orange) and 20 mL of a PAE-LA chloroform solution at a concentration of 1.2 × 10 -5 mol / L The phase transfer rates of dandan yellow, methyl orange and xylenol orange reached 83.75%, 81.96% and 57.35% respectively when the pH value was 2 in the aqueous phase.