叔胺基CO2开关表面活性剂的合成及性能研究

doi:10.13218/j.cnki.csdc.2016.05.003

摘要/Abstract

摘要： 以不同碳链长度的脂肪酸(n=12,14和16)和N,N-二甲基-1,3-丙二胺为原料合成了系列长链脂肪酰胺叔胺C_{nAMPM。通过核磁共振氢谱和电导率实验证实了其CO₂开关响应性能。研究发现:通入CO₂后,C_{nAMPM表现出表面活性剂特征,随着碳链长度增加,cmc线性降低,发泡性能、乳化正庚烷的能力和在标准帆布上的润湿性能也相应下降。通入N₂后,发泡力大幅度降低;C₁₂AMPM的乳化性能较好,润湿性能好于另外2种;而C₁₄AMPM和C₁₆AMPM的乳化能力和润湿能力均较差。}}

关键词: 开关型表面活性剂, 叔胺基, CO₂响应, 泡沫性能, 乳化力, 润湿性

Abstract: A series of long-chain fatty amido tertiary amine-based CO₂ switchable surfactant N-(3-(dimethyl amino) propyl) alkyl amide (C_nAMPM,n=12,14 and 16) was synthesized with fatty acids separately and N,N-dimethyl-1,3-propanediamine as starting materials.Its performance was verified to be CO₂-responsive via ¹H NMR spectra and conductivity measurement.Results showed that,C_{nAMPM display as cationic surfactants after bubbling CO₂.With increasing the length of hydrophobic group,their critical micellar concentration (cmc) decreases linearly and foaming power,emulsifying power as well as wetting power all decrease.As CO₂ is replaced with N₂,the foaming power of C_{nAMPM decreases to a great extent.For C₁₂AMPM,the emulsifying power keeps unchanged,while the wetting power is better than that of C₁₄AMPM and C₁₆AMPM.C₁₄AMPM and C₁₆AMPM display poor emulsifying power and wetting power.}}

Key words: switchable surfactant, tertiary amine-based, CO₂-responsive, foaming, emulsifying, wetting

中图分类号:

TQ423

武文涛,张永民,刘雪锋. 叔胺基CO₂开关表面活性剂的合成及性能研究[J]. 日用化学工业, 2016, 46(5): 251-256.

WU Wen-tao,ZHANG Yong-min,LIU Xue-feng. Synthesis and performance of tertiary amine-based CO₂ switchable surfactants[J]. China Surfactant Detergent & Cosmetics, 2016, 46(5): 251-256.

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叔胺基CO₂开关表面活性剂的合成及性能研究

Synthesis and performance of tertiary amine-based CO₂ switchable surfactants

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