Wang Xuechuan
2012
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0
Influential Citations
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Journal
China Surfactant Detergent & Cosmetics
Abstract
An intermediate 4-(bis(2-hydroxy ethyl) imine)-4-oxy butyric acid(hereinafter refers to as AB2) was synthesized from succinic anhydride and diethanol amine as starting materials.The AB2 was further reacted with trihydroxymethyl propane with p-toluene sulfonic acid as catalyst and toluene as water stripping agent to obtain hydroxyl-terminated hyperbranched poly(amine-ester).Then the latter was modified with palmitoyl chloride to obtain hyperbranched polymer surfactant.On the basis of single-factor experiments,the optimum synthesis conditions for hydroxyl-terminated hyperbranched poly(amine-ester) were determined as follows:esterification reaction temperature,120 ℃;reaction time,8 h;dosage of catalyst,3%(based on total mass of AB2 monomer).The molecular structure of the hydroxy-terminated hyperbranched poly(amine-ester) products,both before and after the palmitoyl chloride modification were characterized by FTIR and 1HNMR.The surface activity of the final product was investigated by surface tension instruments,and the final product shows properties of a typical surfactant.