含亚砜基蛋氨酸型表面活性剂的合成及性能  

Synthesis and Performance of Sulfoxide-modified Methionine Surfactants

作　　者：张逸伟[1] 饶磊[1] 徐旭辉[1] 林东恩[1] 廖能[1] 

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《精细化工》2015年第11期1212-1216,共5页Fine Chemicals

基　　金：国家国际科技合作专项项目(2012DF G21780)~~

摘　　要：以蛋氨酸和长链脂肪酸为原料,合成了4种不同碳链长度的含亚砜基蛋氨酸型表面活性剂（CnMSO）。通过FTIR、1HNMR和ESI-MS表征了产物的结构,并对该系列表面活性剂的表面张力、临界胶束浓度（CMC）、乳化性能、发泡性能、硬水稳定性和抑菌性能进行了测定。结果表明,该系列的表面活性剂的最低表面张力（γCMC）为21-24 m N/m,临界胶束浓度为0.15-1.5 mmol/L,在硬水中的平均稳定性均在3级以上,具有良好的泡沫性能和乳化性能。另外,产物对大肠杆菌、金黄色葡萄球菌和白色念珠菌的生长抑制作用明显,抑菌性优于N-月桂酰谷氨酸（C12G）。Four sulfoxide-modified methionine surfactants with different carbon chain length were synthesized from long chain fatty acid and methionine,and the structures of the products were characterized by means of FTIR,1HNMR and ESI-MS. The surface tension,critical micelle concentrations（ CMC）,emulsifying property,foaming property,hard water stability and antibacterial activity were investigated. The results show that the surface tension（ γCMC） varied within the range of21 ~ 24 m N / m,critical micelle concentrations（ CMC） varied within the range of 0. 15 ~ 1. 5 mmol / L,they perform good emulsifying property and foaming property. Besides,they have certain antibacterial property.

关 键 词：蛋氨酸亚砜 表面活性剂 表面性能 抑菌活性 

分 类 号：TQ649.1[化学工程—精细化工]