Synthesis and Properties of Gemini Cationic Surfactants with Amide Spacers  

作　　者：DENGQi-gang YUHong-wei LINHong JIALi-hua GUOXiang-feng ZHOUDe-rui 

机构地区：[1]CollegeofChemistryandChemicalEngineering,QiqiharUniversity,Qiqihar161006,P.R.China [3]DepartmentofAppliedChemistry,HarbinInstituteofTechnology,Harbin150001,P.R.China／／CollegeofChemistryandChemicalEngineering,QiqiharUniversity [4]DepartmentofAppliedChemistry,HarbinInstituteofTechnology,Harbin150001,P.R.China

出　　处：《Chemical Research in Chinese Universities》2005年第3期337-339,共3页高等学校化学研究（英文版）

基　　金：SupportedbytheNaturalScienceFoundationofHeilongjiangProvince(No.B0202)andKeyTeacherAidFinanciallyProjectofHeilongjiangProvince(2002),andbytheNationalBasicResearchPrioritiesProgramofChina(No.2002CCC01200).

摘　　要：Four gemini cationic surfactants {N,N′-di[2-(lauryldimethylamino)acetyl]polymethylenediamine dichloride, LAA-s-LAA, s=2,3,4,6} were synthesized by using four bis(α-chloroacetamide)s and N,N-dimethyllaurylamine, respectively. The molecular structures were characterized by means of IR, ~ 1H NMR, \{~ ~13 C NMR\} and MS, and the behavior of their aqueous solutions was studied. The critical micell concentrations(CMC) of LAA-s-LAA were one order of magnitude lower than that of dodecyltrimethyl ammonium chloride(DTAC). With the change of the length of spacer chain(s), their CMC values change, and CMC reaches the top value at s=4.Four gemini cationic surfactants {N,N′-di[2-(lauryldimethylamino)acetyl]polymethylenediamine dichloride, LAA-s-LAA, s=2,3,4,6} were synthesized by using four bis(α-chloroacetamide)s and N,N-dimethyllaurylamine, respectively. The molecular structures were characterized by means of IR, ~ 1H NMR, \{~ ~13 C NMR\} and MS, and the behavior of their aqueous solutions was studied. The critical micell concentrations(CMC) of LAA-s-LAA were one order of magnitude lower than that of dodecyltrimethyl ammonium chloride(DTAC). With the change of the length of spacer chain(s), their CMC values change, and CMC reaches the top value at s=4.

关 键 词：Gemini cationic surfactant SYNTHESIS Amide spacer Surface tension 

分 类 号：O643.36[理学—物理化学] O613.61[理学—化学]