摘要
合成了一种新型的DEDS-10双子表面活性剂，用红外光谱对所合成化合物的结构进行了初步表征。DEDS-10的临界胶束浓度cmc为0.47mmoL／L，γcmc为34．5mN／m，AlCl3、CaCl2和NaCl可以使γcmc降低3．6～1．1mN／m，其cmc值大约为纯水溶液cmc值的1／5-1／3；加入乙醇，可增加其表面活性，在乙醇的浓度为0．22mol／L时，其表面张力为30mN／m左右。与阳离子表面活性剂DTAB和非离子表面活性剂曲拉通X-100复配，可以大幅度地降低cmc和γcmc值，与阴离子表面活性剂TLS复配时，cmc降低，γcmc略有增加。
A new Gemini surfactant DEDS-10 was synthesized. Its structure was characterized elementarily with IR spectrum. The critical micelle concentration （cmc） of its aqueous solution is 0.47 mmol/L, its solution surface tension （γcmc） is 34.5 mN/m at cmc. Adding NaCl, CaCl2 or AlCl3, the γcmc reduces 3.6 - 1.1 mN/m,and the cmc is 1/5 - 1/3 of pure aqueous solution. Alcohol can increase its surface activity,the γcmc is 30 mN/m when alcohol concentration is 0.22 mmol/L. Adding cationic surfactant, such as DTAB,or nonionic surfactant, such as Triton X-100,the cmc and the γcmc markedly decreases. Adding anionic surfactant, such as TLS,the cmc decreases, and the γcmc appreciably increases.
出处
《应用化工》
CAS
CSCD
2006年第4期255-258,共4页
Applied Chemical Industry
基金
四川省重点学科建设基金
四川省基础研究项目资助(SZD0413)
关键词
双醚双磺酸钠盐
双子表面活性剂
临界胶束浓度
表面张力
复配
double ether double sulfonate
Gemini surfactant
critical micelle concentration
surface tension
combination
