共查询到16条相似文献,搜索用时 93 毫秒
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厦门大学化学化工学院日前研发出月桂酰肌氨酸钠表面活性剂。该产品可以广泛应用于石油开采、洗涤剂、化妆品、食品饮料、金属加工、矿物浮选、农药调配和生物医药等多个行业中。 相似文献
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α-Gel, as a specific lamellar liquid crystal structure, presents unique parameters and attracts broad interest. However, conventional formation of α-gel involves surfactants that have a long alkyl chain (more than 14 carbons), resulted in limited application into personal care products due to their low Krafft temperature. In this study, a simple way to generate α-gel was developed using sodium lauroyl sarcosinate, an amino-acid-based surfactant containing an alkyl chain with less than 12 carbons. The desired structure was analyzed and discussed. The method, when extended to other amino acid-based surfactants, gave positive results. 相似文献
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N-(p-全氟壬烯氧基苯磺酰基)肌氨酸钠的合成与表面活性 总被引:2,自引:1,他引:1
以全氟壬烯基苯基醚、氯磺酸和肌氨酸为主要原料,经氯磺化和酰胺化反应制备了含氟表面活性剂N-(p-全氟壬烯氧基苯磺酰基)肌氨酸钠,用红外光谱和19F-NMR,1H-NMR对中间体和产物分子结构进行了表征.正交实验法优化了各步反应条件,氯磺化反应较佳工艺条件:n(全氟壬烯基苯基醚): n(氯磺酸)=1: 4,四氯化碳溶剂中70 ~75℃反应5 h;酰胺化反应较佳工艺条件:n(p-全氟壬烯氧基苯磺酰氯): n(肌氨酸钠): n(氢氧化钠)=1.00 : 1.75 : 2.00,在四氢呋喃溶剂中,室温下搅拌反应3.0 h,得含氟表面活性剂N-(p-全氟壬烯氧基苯磺酰基)肌氨酸钠.以全氟壬烯基苯基醚计,反应总收率96.0%.表面活性测试结果表明,N-(p-全氟壬烯氧基苯磺酰基)肌氨酸钠表面活性剂的临界胶束浓度为5×10-4 mol·L-1,其水溶液的表面张力γcmc 为22.8 mN·m-1(25℃). 相似文献
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K. Molever 《Journal of the American Oil Chemists' Society》1993,70(1):101-103
A simple and rapid procedure is described for the isolation, silylation and wide-bore capillary gas chromatographic quantitation
of sodium lauroyl sarcosinate in personal care products. The sample is dissolved in acidified dimethylformamide to simultaneously
acidify/extract the lauroyl sarcosine; an aliquot is then derivatized withbis trimethylsilyltrifluoroacetamide and quantitated by widebore capillary gas chromatography with flame ionization detection. 相似文献