N,N′-双十二烷基乙脒基碳酸氢盐的合成及性能研究

doi:10.13218/j.cnki.csdc.2014.03.031

Abstract

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 γ_cmc 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

CLC Number:

TQ423

ZHANG Ting, DAI Li, JIANG Jian-zhong, CUI Zheng-gang. Synthesis and properties of N,N′-didodecylacetamidinium bicarbonate[J].China Surfactant Detergent & Cosmetics, 2014, 44(3): 135-138.

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Synthesis and properties of N,N′-didodecylacetamidinium bicarbonate

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