端羟基超支化聚合物的合成与改性  

Synthesis and modification of hydroxyl-terminated hyperbranched polymer

作　　者：强涛涛[1] 张国国[1] 王学川[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《日用化学工业》2012年第6期413-417,共5页China Surfactant Detergent & Cosmetics

基　　金：国家自然科学基金资助项目(51103082);教育部博士点专项科研基金资助项目(20116125120002);陕西省科技计划资助项目(2011JQ2012);陕西科技大学研究生创新基金资助项目

摘　　要：以丁二酸酐和二乙醇胺为起始原料通过加成反应合成AB2单体,将其与三羟甲基丙烷反应,在对甲苯磺酸催化下,甲苯为带水剂,通过酯化反应得到三代端羟基超支化聚(胺-酯),再以棕榈酰氯对其进行改性得到超支化聚(胺-酯)表面活性剂。通过单因素实验筛选出合成端羟基超支化聚合物较佳反应条件:反应温度120℃,反应时间8 h,催化剂用量为3%(相对于AB2单体质量)。利用FTIR和1HNMR对改性前后超支化聚(胺-酯)的分子结构进行了表征。通过表面张力仪对产物的表面活性进行了研究,结果表明合成的产物具有典型表面活性剂的性质。An intermediate 4 - （ bis （2 - hydroxy ethyl） imine） - 4 - oxy butyric acid （ hereinafter reters 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.

关 键 词：超支化聚(胺-酯) 合成 改性 表面活性 

分 类 号：TQ423[化学工程]