Synthesis and Evaluation of Surface and Biological Properties of Some Lactic Acid-Based Anionic Surfactants
作者:Yasa Sathyam Reddy、Pombala Sujitha、Chityal Ganesh Kumar、Sanjit Kanjilal、Penumarthy Vijayalakshmi
DOI:10.1007/s11743-015-1774-7
日期:2016.3
In the present study, 11 lactic acid‐based anionic surfactants were synthesized and evaluated for their surface and biological activities. The synthesis involved the esterification of lactic acid with a range of fatty alcohols differing in chain length as well as in branching and unsaturation. The resultant ester was sulfonated by treatment with chlorosulfonic acid followed by salt formation with aqueous
在本研究中,合成了11种基于乳酸的阴离子表面活性剂,并对其表面和生物学活性进行了评估。合成涉及乳酸与一系列链长以及支链和不饱和度不同的脂肪醇的酯化反应。通过用氯磺酸处理将所得的酯磺化,然后用NaOH水溶液形成盐。使用表面张力测定法测定所有合成的表面活性剂的表面性质。合成的表面活性剂显示出较低的临界胶束浓度(CMC)值,并且随着烷基链长度的增加而呈下降趋势。与具有相同碳原子数的线性对应物相比,烷基支化还导致CMC值的轻微变化,尽管观察到这种减少或增加取决于分支的位置和数量。一些合成的表面活性剂对被测微生物菌株和细胞系表现出良好的抗微生物和抗癌活性。