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日用化学工业 ›› 2014, Vol. 44 ›› Issue (3): 135-138.doi: 10.13218/j.cnki.csdc.2014.03.031

• 开发与应用 • 上一篇    下一篇

N,N′-双十二烷基乙脒基碳酸氢盐的合成及性能研究

张婷, 代利, 蒋建中, 崔正刚   

  1. 江南大学 化学与材料工程学院,江苏 无锡 214122
  • 收稿日期:2014-01-04 发布日期:2019-04-09
  • 通讯作者: 蒋建中,副教授,博士研究生,E-mail:j.z.jiang@hotmail.com。
  • 作者简介:张 婷(1989-),女,贵州人,硕士研究生,E-mail:tingzhang0814@126.com。
  • 基金资助:
    国家自然科学基金资助项目(20901032)

Synthesis and properties of N,N′-didodecylacetamidinium bicarbonate

ZHANG Ting, DAI Li, JIANG Jian-zhong, CUI Zheng-gang   

  1. School of Chemical & Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2014-01-04 Published:2019-04-09

摘要: 在N2保护下,以原乙酸三乙酯和十二胺为原料合成了N,N′-双十二烷基乙脒,然后在少量水存在下,向含N,N′-双十二烷基乙脒的乙醚中通入CO2生成了开关型表面活性剂N,N′-双十二烷基乙脒基碳酸氢盐,其结构经IR,MS和1HNMR表征。通过吊环法测得其在水中的cmc为7.08×10-5 mol·L-1cmc为28.96 mN·m-1,可以大幅度降低水的表面张力,具有良好的表面活性,并利用电导率测试证实了它的开关性能。

关键词: 开关型表面活性剂, 脒基碳酸氢盐, 合成, 性能

Abstract: Under the atmosphere of nitrogen,N,N′-didodecylacetamidine was synthesized by reacting triethyl orthoacetate with dodecylamine,followed by bubbling CO2 through ether with existence of small amount of water,the switchable surfactant N,N′-didodecylacetamidinium bicarbonate was produced.IR,MS and 1HNMR were used to characterize its structure.The critical micelle concentration tested in water by ring method is 7.08×10-5 mol·L-1 and γcmc is 28.96 mN·m-1.It shows a good performance in reducing the surface tension of water.Switching performance was tested and confirmed by conductivity.

Key words: switchable surfactant, amidinium bicarbonate, synthesis, properties

中图分类号: 

  • TQ423