季铵化聚乙烯亚胺的制备  

Preparation of Quaternary Polyethyleneimine

作　　者：张昕[1] 高保娇[1] 王蕊欣[1] 李刚[1] 

机构地区：[1]中北大学化学工程系,山西太原030051

出　　处：《合成化学》2007年第3期275-279,共5页Chinese Journal of Synthetic Chemistry

基　　金：山西省工业攻关资助项目(MP20000414)

摘　　要：以环氧丙烷为叔胺化试剂,氯化苄为季铵化试剂通过聚乙烯亚胺(PEI)的叔胺化与季铵化反应制备了季铵化的聚乙烯亚胺(QPEI),其结构经IR表征。考察了反应条件对合成QPEI的影响。研究结果表明,使用环氧丙烷,可绿色化地实现PEI链中的伯胺基和仲胺基的叔胺化得到叔胺化的聚乙烯亚胺(TPEI);以氯化苄为季铵化试剂,于50℃反应30 h可使TPEI链中90%以上的叔胺基实现季铵化,从而使PEI链中的总N原子数实现50%以上的季铵化。Quaternary polyethyleneimine（QPEI amination. The structure was characterized by ） was prepared by tertiary amination and quaterisation IR. The effects of various reaction conditions on the tertiary amination and the quaterisation arnination were discussed. The results showed that the tertiary amination for primary and secondary amine groups of PEI was realized greenly to obtain ternary polyethyleneimine（TPEI） using epihydrin as a ternary reagent at 3 ℃. Using benzyl chlorideas a quaternary reagent, more than 90% tertiary amine groups of TPEI were quatemarized at 50 ℃ for 30 h, so that the quaternary degree of the total N atoms of PEI was up to 50%.

关 键 词：聚乙烯亚胺 叔胺化 季铵化 环氧丙烷 氯化苄 

分 类 号：O633.2[理学—高分子化学]