间苯二甲酸酯Gemini表面活性剂的合成及性能  

Synthesis and Properties of Isophthalate Gemini Surfactant

作　　者：陈赓[1] 潘忠稳[1] 薛伟[1] 陶明山[1] 罗世宏[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230601

出　　处：《化学世界》2014年第11期672-676,683,共6页Chemical World

摘　　要：N,N-二甲基乙醇胺与间苯二甲酰氯反应获得二(N,N-二甲基胺基乙基)间苯二甲酸酯,再分别与溴代正十二烷和溴代正十六烷制得两种含酯基Gemini阳离子表面活性剂(C12-O-C12、C16-O-C16)。采用IR、1 H NMR、元素分析表征了其结构。测定了其临界胶束浓度(CMC)分别为6.91×10-4 mol/L、7.07×10-5 mol/L;平衡表面张力(γCMC)分别为41.9 mN/m、40.8 mN/m;Krafft点分别为<0℃、43℃。并研究了其乳化性、泡沫性质等。Bis[2-（dimethylamino）ethyl]isophthalate was synthesized by using isophthaloyl dichloride and N,N-dimethylethanolamine as raw materials.Then,two series of estercontaining cationic Gemini surfactants,namely C12-O-C12 and C16-O-C16,were synthesized by reacting bis[2-（dimethylamino）ethyl]isophthalate with 1-bromododecane and 1-bromohexadecane,respectively.The chemical structures of the products were confirmed by IR,1 H NMR and elemental analysis.The properties of C12-O-C12 and C16-OC16 were tested,respectively.The CMC were 6.91×10^-4 mol/L and 7.07×10^-5 mol/L,theγCMCwere41.9mN/m and 40.8mN/m,and the Krafft point were 〈0℃ and 43℃,respectively.The foaming and emulsifying properties of the surfactants were also studied.

关 键 词：合成 间苯二甲酸酯Gemini表面活性剂 表面性质 

分 类 号：O647.2[理学—物理化学]