摘要
Abstract
Bis [ 3‐( dimethylamino ) propyl ] isophthalamide was synthesized by using isophthaloyl dichloride and 3‐dimethylaminopropylamine . T hen , three series of amide cationic Gemini surfactants , namely C12‐N‐C12 , C14‐N‐C14 and C16‐N‐C16 , were synthesized by reacting bis [ 3‐( dimethylamino ) propyl ] with 1‐bromododecane , 1‐bromotetradecane and 1‐bro mohexadecane , respectively . The chemical structures of products were confirmed by IR ,1 H‐NMR and elemental analysis .The CMC were 5•96 × 10 -4 ,1•03 × 10 -4 ,6•25 × 10 -5 mol・ L -1 ,the γCMC were 40•83 ,38•76 ,38•08 mN ・m -1 , and the Krafft point were < 0 ,< 0 ,12 ℃ ,respectively .The forming and emulsifying property of surfactant were also studied .关键词
合成/间苯二甲酰氯/Gemini表面活性剂/表面性质Key words
synthesis/isophthaloyl dichloride/Gemini surfactants/surface properties分类
化学化工
