日用化学工业2016,Vol.46Issue(5):251-256,6.DOI:10.13218/j.cnki.csdc.2016.05.003
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
摘要
Abstract
A series of long -chain fatty amido tertiary amine -based CO2 switchable surfactant N -(3 -(dimethyl amino)propyl)alkyl amide (CnAMPM,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,CnAMPM 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 CnAMPM decreases to a great extent. For C12 AMPM,the emulsifying power keeps unchanged,while the wetting power is better than that of C14 AMPM and C16 AMPM. C14 AMPM and C16 AMPM display poor emulsifying power and wetting power.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Key words
switchable surfactant/tertiary amine-based/CO2 -responsive/foaming/emulsifying/wetting分类
化学化工引用本文复制引用
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):251-256,6.基金项目
江苏省高校青蓝工程资助项目 ()