林产化学与工业2015，Vol.35Issue(6)：39-46,8.DOI:10.3969/j.issn.0253-2417.2015.06.007
含酰胺基团松香基双子表面活性剂的合成与性能
Synthesis and Properties of Rosin-based Gemini Surfactants with Amide Group
摘要
Abstract
Three novel rosin-based Gemini surfactants, i. e. , 1,6-bis ( 3-dehydroabietic amide-propyl-dimethyl ammonium bromide)hexane,1,8-bis(3-dehydroabietic amide-propyl-dimethyl ammonium bromide) octane and 1,10-bis(3-Dehydroabietic amide-propyl-dimethyl ammonium bromide ) decane ( abbreviated to R-6-R, R-8-R and R-10-R ) , were synthesized from dehydroabietic acid via reactions of amidation and quaternization. The surface activities of three surfactants were investigated by surface tension and electric conductivity methods. And the results showed that the critical micelle concentrations ( Ccmc ) of R-6-R,R-8-R and R-10-R were 0. 41,0. 39 and 0. 24 mmol/L,and the minimum molecular occupation areas (Amin) were 1. 00, 1. 46 and 1. 72 nm2 , respectively. The amide groups in the hydrophobic chain promoted the adsorption of surfactants at the interface. The presence of a rigid rosin skeleton made this kind of surfactants have strong foam stability and emulsifying properties. The foam half-lives of R-6-R,R-8-R and R-10-R were 1 320,1 200 and 1 050 min,respectively. And the emulsion remained stable after 7 days when the concentration of surfactant was only 0. 3 mmol/L.关键词
脱氢枞酸/松香基双子表面活性剂/泡沫/乳液Key words
dehydroabietic acid/rosin-based Gemini surfactant/foam/emulsion分类
化学化工引用本文复制引用
宋冰蕾,余小娜,陈燕,裴晓梅,周萍萍,翟兆兰..含酰胺基团松香基双子表面活性剂的合成与性能[J].林产化学与工业,2015,35(6):39-46,8.基金项目
国家自然科学基金资助项目(31300486) （31300486）
