(2-己基-1,3-二氧杂戊环-4)甲烷-1-吡啶盐的合成及其表面活性  

Synthesis and Surface Activity of (2-Hexyl-1,3-dioxa-cyclopentane-4)methane-1-pyridinium Salt

作　　者：马腾[1] 郭阳阳[1] 翟文杰[1] 梁辉辉[1] 张宽宇[2] 张昭[1] 

机构地区：[1]山西大学化学化工学院,山西太原030006 [2]北京化工大学材料科学与工程学院,北京100029

出　　处：《合成化学》2012年第1期80-82,共3页Chinese Journal of Synthetic Chemistry

基　　金：山西大学本科生科研训练资金资助项目(2011)

摘　　要：以脂肪醛、环氧溴丙烷、吡啶为原料,在三氟化硼乙醚的催化下,通过缩合、N-烷基化反应合成了新型含吡啶环1,3-二氧杂环戊烷的单阳离子表面活性剂——(2-己基-1,3-二氧杂戊环-4)甲烷-1-吡啶盐(2),其结构经1H NMR和IR表征。表面活性测试结果表明,2在20℃时临界胶束浓度为4.5×10-3mol·L-1,Krafft点低于20℃,泡沫稳定性72.7%,乳化性2 min。A novel 1,3-dioxa cyclopentane single cationic surfactant containing pyridine ring,（2-hexyl-1,3-dioxa-cyclopentane-4）methane-1-pyridinium salt（2）,was synthesized from aliphatic aldehyde,epibromohydrin and pyridine by condensation,then N-alkylation reaction using boron fluoride etherate as the catalyst.The structure was characterized by 1H NMR and IR.The surface activities of 2 were as follows： the critical micelle concentration was 4.5×10-3 mol·L-1 at 20 ℃,Krafft point was lower than 20 ℃,foam stability was 72.7%,emulsifiability time was 2 min.

关 键 词：缩醛 吡啶 阳离子表面活性剂 合成 

分 类 号：O647.2[理学—物理化学]