Industrial Applications of Dimeric Surfactants: A Review
Industrial Applications of Dimeric Surfactants: A Review
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DOI：
10.1080/01932691.2013.780243
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发表时间：
2014-01
影响因子：
2.2
通讯作者：
Naveen Kumar;R. Tyagi
中科院分区：
文献类型：
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作者：
Naveen Kumar;R. Tyagi
二聚表面活性剂也被称为双子表面活性剂，在各种科学和商业产品的高性能配方中受到了广泛的关注。由于每个分子的烃量更大，二聚体的临界胶束浓度（CMC）通常比相应的单体表面活性剂低一个数量级。它们在降低水的表面张力和油-水界面的界面张力方面比常规表面活性剂有效十到一百倍。此外，具有亲水性间隔基的双子表面活性剂的Krafft温度通常非常低，使得这些表面活性剂能够在冷水中使用。这些表面活性剂显示出一系列有趣的特性，包括高表面活性，极低的CMC和非凡的流变性和自同化方面。由于这些性质，它们具有许多潜在的应用，包括洗涤剂和清洁剂、化妆品、纺织品和染色、分散稳定和乳液聚合、遗传科学、制药和生物应用。
Dimeric surfactants also known as gemini surfactants have received lots of attention for high performance formulations in the various scientific and commercial products. Due to the greater amount of hydrocarbon per molecule, the critical micelle concentrations (CMC) of dimeric are typically one order of magnitude lower than the corresponding monomeric surfactant. They are ten to hundred times more efficient at reducing the surface tension of water and the interfacial tension of the oil-water interface than conventional surfactants. Besides, the Krafft temperatures of gemini surfactants with hydrophilic spacers are generally very low giving these surfactants the capacity to be used in cold water. These surfactants display a range of interesting properties, including elevated surface activity, extremely low CMC and extraordinary rheology and self-assimilation aspect. As a consequence of these properties, they have many potential applications include detergents and cleaning agents, cosmetics, textile, and dyeing, dispersion stabilization and emulsion polymerization, genetics science, pharmaceutical, and biological applications.