摘要
以1H,1H,2H,2H-全氟己-1-醇和三氟甲烷磺酸酐为起始原料合成了两种具有不同连接基团的短氟碳链季铵盐表面活性剂。通过FTIR、1 H NMR对目标产物的结构进行了表征,并对其表面活性、复配性能及润湿性能进行了测试。研究表明,以酯基为连接基的表面活性剂具有更小的临界胶束浓度(CMC),更低的表面张力,其CMC为0.3mmol/L,γCMC为18.9mN/m,其与SDBS复配后的表面张力最低值为20.5mN/m,而以酰胺基为连接基的表面活性剂则具有更好的润湿性及水溶性,其CMC为1.1mmol/L,γCMC为19.4mN/m。
Two quaternary ammonium surfactants with different linking groups containing short fluorocarbon chain were synthesized by using 1H,1H,2H,2H-perfluorohexan-1-ol and trifluoromethanesulfonic anhydride as the raw materials. The structure of surfactants were characterized by FTIR and NMR, and the surface activity, compound property and wetting property of the surfactants were investigated. The results show that the surfactant which takes ester group as the linking group has smaller critical micelle concentration （CMC） and lower surface tension. Its CMC is 3. 2 mmol/L and the 7cmc is 18. 9 mN/nx The lowest value of the surface tension after compounding SDBS is 20. 5 mN/nx The surfactant which takes amide as the linking group has better wetting property and solubility. Its CMC is 1.1 mmol/L and the 7cmc is 19. 4 mN/m.
出处
《浙江理工大学学报（自然科学版）》
2017年第2期202-207,共6页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
浙江省公益技术应用研究计划项目(2016C33017)
国家自然科学基金项目(201302170)
关键词
短氟碳链
季铵盐
表面活性剂
表面活性
复配性能
润湿性能
short fluorocarbon chain
quaternary ammonium salt
surfactant
surface activity
compound property
wetting property
