丙二酰胺型双子表面活性剂的合成与性能  

Synthesis and properties of Gemini surfactants with malonamide group

作　　者：陶明山[1] 潘忠稳[1] 罗世宏[1] 丁效明[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《化学研究与应用》2013年第6期793-797,共5页Chemical Research and Application

摘　　要：丙二酸二乙酯经N,N-二甲基-1,3-丙二胺胺解,再与溴代十六烷或溴代十四烷季铵盐化,合成了两种新型含丙二酰胺基Gemini表面活性剂(命名为16-9-16,14-9-14)。产物经乙腈重结晶,收率分别为80、77.6%(以丙二酸二乙酯计)。采用IR、1H-NMR表征了结构,通过电导法测定其临界胶束浓度(CMC)分别为8.13×10-5、1.69×10-4mol.L-1,采用体积滴定法测定其表面张力γCMC为39.22、40.69 mN.m-1。并研究了其乳化、泡沫性能。Two kinds of novel Gemini surfactants with malonamide group named 16-9-16 and 14-9-14 were synthesized by diethyl malonate aminolysised with N, N-dimethyl-l, 3-propanediamine, then quaternized with 1-bromotetradecane or 1-bromohexadecane respectively. The resulting quaternary salt was recrystallized in acetonitrile with yield of 80 and 77. 6% （ based on diethyl mal- onate）. The structure was confirmed by IR, 1HNMR. The critical micelle concentration（CMC） were found to be 8.13 × 10-5 and 1.69 × 10-4 mol · L^-1 by conductivity method, the TCMC to be 39. 22 and 40. 69mN · m^-1 by dripping volume method. Moreover, the form- ing property and emulsifying property were also studied.

关 键 词：丙二酰胺型双子表面活性剂 合成 性能 

分 类 号：O623.626[理学—有机化学]