一种含多官能团双子表面活性剂的合成及性能  

Synthesis and properties of a Gemini surfactant containing polyfunctional group

作　　者：罗世宏[1] 潘忠稳[1] 陶明山[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：《安徽大学学报（自然科学版）》2013年第3期87-91,共5页Journal of Anhui University(Natural Science Edition)

摘　　要：合成一种含多个官能团的Gemini表面活性剂C16H33OCOCH2(CH3)2N+(CH2)3NHCOCH2CONH-(CH2)3N+(CH3)2CH2COOC16H33.2Br-(Ⅰ)并研究其表面性质.在丙酮溶剂中,二(3-二甲氨基丙基)丙二酰胺(Ⅱ)与过量的氯乙酸十六醇酯反应,经丙酮和乙腈混合溶剂重结晶得到白色固体产物,收率为82.6%(以Ⅱ计).采用IR、1H NMR对其结构进行表征.两相滴定法分析其纯度为99.8%;电导率法测定其CMC值为6.33×10-5mol.L-1;滴体积法测定其γCMC为34.89 mN.m-1;其Krafft点小于0℃.并研究了其乳化、泡沫性能.A polyfunctional group Gemini surfactant, C16 H33 OCOCH2 （ CH3 ） 2 N＋ （ CH2 ） 3 NHCOCH2 - CONH （ CH2 ） 3 N＋（ CH3 ） 2 CH2 COOC16 H33·2Br- （ Ⅰ ）, was synthesized and the surface properties were studied. Bis [ 3 - （dimethylamino） propyl ] diethyl malonamide （Ⅱ） reacted with chloroacetic cetyl alcohol ester, and the resulting quatemary salt was recrystallized in acetonitrile and acetone in the form of white solid with 82.6% yield （ based on Ⅱ ）. The structure was confirmed by IR,^1H NMR. The purity of （Ⅰ） was 99.8% by two-phasechemical titration analysis. The critical micelle concentration （ CMC ） was found to be 6.33 × 10-5 mol·L-1 by measuring the electrical conductivity,and its surface tension γCMC was 34.89 mN· m^-1 by drop volume method. The Krafft point is below 0℃. Moreover, the forming property and emulsifying property were also studied.

关 键 词：含多官能团Gemini表面活性剂 CMC 合成 性能 

分 类 号：O647.2[理学—物理化学]