文献类型：期刊文献

中文题名：含偶氮苯基团的松香基阴离子表面活性剂的合成及其性能研究

英文题名：Synthesis and Properties of a Rosin-based Anionic Surfactant with Azobenzene Group

作者：叶圣丰[1,2] 翟兆兰[1] 商士斌[1] 宋湛谦[1]

第一作者：叶圣丰

机构：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业和草原局林产化学工程重点实验室,江苏省生物质能源与材料重点实验室,江苏南京210042;[2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037

年份：2022

卷号：42

期号：3

起止页码：57-64

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家自然科学基金资助项目(32001268)。

语种：中文

中文关键词：松香基表面活性剂;合成;泡沫性能

外文关键词：rosin-based surfactant;systhesis;foam properties

分类号：TQ35;TQ423

摘要：以改性松香马来海松酸为原料,通过D-A加成、酰亚胺化等一系列方法合成了一种含偶氮苯基团的松香基表面活性剂4-马来海松酸乙酯基偶氮苯酚钠(E-MPA-AZO-Na),并采用FT-IR和NMR表征其化学结构,通过采用表面张力法、尼罗红(NR)荧光探针法和偏光显微镜分析了它的表面活性和泡沫性能。研究结果表明:E-MPA-AZO-Na的临界胶束浓度(C_(cmc))低至0.035 mmol/L,达到C_(cmc)时的表面张力(γ_(cmc))为47.11 mN/m,最小截面积(a_(min))为1.35 nm^(2),具有良好的表面活性。E-MPA-AZO-Na的浓度为0.375、0.750和1.500 mmol/L时均可形成稳定的泡沫。随着浓度的增加,E-MPA-AZO-Na的发泡性越好,泡沫粒径越小,形成的泡沫也越稳定;各浓度对应的泡沫半衰期分别为1292、1770和2534 min,具有突出的稳泡性能。
A rosin-based anionic surfactant with azobenzene group named sodium 4-maleopimaric acid ethyl ester azophenol(E-MPA-AZO-Na)was synthesized through D-A addition,amidation,diazotization,coupling reaction,esterification,and acid-base neutralization using rosin as raw material.Its structure was characterized by FT-IR and NMR.The surface activities and foam properties were investigated by surface tension method,Nile red(NR)fluorescence probe method and polarizing microscope.The results showed that the critical micelles concentration(C_(cmc))of surfactant E-MPA-AZO-Na was only 0.035 mmol/L,the surface tension at the C_(cmc)(λ_(cmc))was 47.11 mN/m,and the minimum area per molecule(a_(min))was 1.35 nm^(2),which meant that E-MPA-AZO-Na possesses excellent surface activities.Stable foams could be stabilized when the concentrations of E-MPA-AZO-Na were 0.375,0.750 and 1.500 mmol/L.Better foaming abilities,smaller foam size and more stable foam emerged with increasing E-MPA-AZO-Na concentration.What’s more,the half-life time of the foams formed at 0.375,0.750 and 1.500 mmol/L were 1292,1770 and 2534 min,respectively,indicated that E-MPA-Azo-Na possessed outstanding foam stability.