New Schiff Base Cationic Surfactants: Surface and Thermodynamic Properties and Applicability in Bacterial Growth and Metal Corrosion Prevention
作者:Nabel A. Negm、Ahmed F. El Farargy、Ahmad M. Al Sabagh、Naser R. Abdelrahman
DOI:10.1007/s11743-011-1258-3
日期:2011.10
A new series of cationic Schiff bases was synthesized and their chemical structures were confirmed using elemental analysis, infrared spectra and nuclear magnetic resonance. The surface properties of the surfactant solutions including surface tension, effectiveness, efficiency, critical micelle concentration, maximum surface excess and minimum surface area were calculated using surface tension‐log
合成了一系列新的阳离子席夫碱,并通过元素分析,红外光谱和核磁共振证实了其化学结构。使用表面张力-对数浓度曲线计算表面活性剂溶液的表面性质,包括表面张力,有效性,效率,临界胶束浓度,最大表面过量和最小表面积。表面参数在很大程度上取决于疏水链的长度。表面活性剂在其溶液中的热力学性质显示出吸附和胶束化过程的自发行为。热力学数据表明,表面活性剂分子在空气/水界面的吸附比大部分溶液中的胶束化更有利。对合成的表面活性剂在防止碳钢在酸性介质中的腐蚀反应以及它们作为抑制细菌生长的抗菌杀生物剂方面进行了评估。腐蚀和抗菌评估的数据表明,这些化合物在这些用途中具有很高的效率和适用性。