一种带有梳状柔性季铵链结构吸附材料的合成  

Preparation of Absorptive Material Containing Comb-Like Flexible Quaternary Ammonium Chain

作　　者：雷文[1] 魏荣卿[1] 刘晓宁[1] 丁凌鹏[1] 吴昊[1] 姜岷[1] 

机构地区：[1]南京工业大学生物与制药工程学院,江苏南京211816

出　　处：《高分子材料科学与工程》2013年第6期24-27,共4页Polymer Materials Science & Engineering

基　　金：国家高技术研究发展专项经费资助("863"项目)(2007AA02Z200;2011AA02A203)

摘　　要：以氯乙酰化聚苯乙烯树脂为引发剂，甲基丙烯酸缩水甘油酯为单体，通过原子转移自由基聚合（ATRP）法制备得到梳状链环氧树脂，该树脂与盐酸三乙胺反应，一步季铵化即得到含梳状柔性季铵链的强碱性阴离子交换树脂（flex—AIQ—R）。研究了溶液pH、反应时间、反应温度、催化剂及试剂用量等对反应的影响。在溶液pH为8～9，催化剂量为2％，盐酸三乙胺与环氧树脂环氧基的物质的量比为5：1。溶剂量为10mL／g，乙醇含量为40％时，于90℃反应10h获得转化率可达85％、担载量为2．78mmol／g的flex-AIQ—R。A strong base anion exchange resin with comb-like flexible chain（flex-AIQ-R）structure was synthesized by the reaction of triethylamine hydrochloride with comb-like epoxy resin which was prepared by atom transfer radical polymerization （ATRP）, using the chloroacetyl styrene-divinylbenzene copolymer microspheres （PS-acyl-C1） as the initiator and glycidyl methacrylate （GMA） as monomer. Several factors were discussed and optimized during the reaction, such as pH of the solution, reaction time, reaction temperature, the amount of catalyst and reagents. The final optimum conditions obtained are as follows： the pH value of the solution is 8-9, the reaction time is 10 h, reaction temperature is 90 ℃, catalyst amount is 2 %, molar ratio of triethylamine hydrochloride and resin is 5 ： 1, the amount of solvent is 10 mL/g and ethanol content is 40 %. Under the above conditions, the conversion rate and maximum loading of the diethyl-amine can be up to 85 % and 2.78 mmol/g, respectively.

关 键 词：氯乙酰化聚苯乙烯树脂 梳状柔性链 环氧树脂 季铵化 强碱性 阴离子交换树脂 

分 类 号：TQ425.232[化学工程]