石油化工2025，Vol.54Issue(6)：794-800,7.DOI:10.3969/j.issn.1000-8144.2025.06.006
磺基甜菜碱两性表面活性剂在水中的聚集行为
Aggregation behavior of sulfonatebetaine zwitterionic surfactants in water
摘要
Abstract
The phase behavior of sulfobetaine amphoteric surfactants(SB3-n,n=12,14,16)in water was studied using methods such as dynamic light scattering,POM,rheological measurements,and SAXS.The structure and properties of aggregates in the SB3-n/water system were analyzed,and the effects of temperature,surfactant content,and solvent on the liquid crystal structure were studied.The experimental results indicate that in water solution,SB3-12 and SB3-14 with shorter alkyl chains can form the micellar phase,micellar cubic phase,and hexagonal phase.However,SB3-16 with longer alkyl chains can only form the micellar phase and hexagonal phase.As the alkyl chain length of SB3-n increases,both the size of the micelles and the lattice parameters of the hexagonal phase increase.In water with higher cohesive energy,SB3-n arranges more densely and exhibits a richer phase behavior.Additionally,the self-assembled hexagonal phase shows higher viscoelasticity.关键词
两性表面活性剂/磺基甜菜碱/相行为/溶致液晶/溶剂效应Key words
zwitterionic surfactant/sulfonate betaine/phase behavior/lyotropic liquid crystal/solvent effect分类
化学化工引用本文复制引用
王蕊蕊,李静,李钦堂,庄文昌..磺基甜菜碱两性表面活性剂在水中的聚集行为[J].石油化工,2025,54(6):794-800,7.基金项目
江苏省双创博士计划(JSSCBS20211277). （JSSCBS20211277）
