摘要
分别以氯乙酸乙二醇双酯、氯乙酸一缩二乙二醇双酯、氯乙酸二缩三乙二醇双酯、氯乙酸三缩四乙二醇双酯与十二烷基二甲基胺反应,合成了4种连接基为聚氧乙烯醚双乙酸酯基的双子季铵盐阳离子表面活性剂(分别记为SAA1、SAA2、SAA3、SAA4),用IR谱、1H-NMR谱表征了其结构,利用荧光探针方法测定了胶束聚集数及胶束浓度,并研究了其水溶液的性质.结果表明:SAA1、SAA2、SAA3、SAA4的临界胶束浓度分别为0 91、0 71、0 69、0 32mmol/dm3.当表面活性剂浓度为1 4×10-2mol/L时,SAA1、SAA2、SAA3、SAA4的胶束聚集数分别为32、36、38、48,胶束浓度分别为4 0×10-4、3 8×10-4、3 3×10-4、2 8×10-4mol/L.SAA1、SAA2、SAA3、SAA4的瞬时泡高分别为162、168、173、175mm.
Through N-alkylation of N,N-dimethyl dodecyl amine with according polyglycol dichloracetates, glycol dichloracetate, diglycol dichloracetate, triglycol dichloracetate and tetraglycol dichloracetate, four kinds of gemini cationic surfactant were synthesized respectively. The molecular structures of these surfactants were characterized by IR and 1HNMR spectrum respectively. The cmc values of the Gemini cationic surfactants SAA1, SAA2, SAA3, SAA4 were 0.91, 0.71, 0.69, 0.32 mmol/dm3 respectively. The aggregation numbers of micelle of SAA1, SAA2, SAA3, SAA4 were 32, 36, 38, 48, respectively and the concentrations of micelle were 4.0 × 10-4, 3.8 × 10-4, 3.3 × 10-4, 2.8 × 10-4 mol/L respectively when C = 1.4 × 10-2 mol/L. The foam powers of them were 162, 168, 173, 175 mm respectively.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2004年第11期1466-1467,1510,共3页
Journal of Harbin Institute of Technology
基金
国家重大基础研究前期研究专项(2002CCC01200)
黑龙江省骨干教师资助计划(2002年).
