由于表面活性剂与金属表面相互作用的强烈倾向,其胶体和腐蚀抑制潜力(CIP)是众所周知的。然而,由于它们的分子尺寸小,而且它们仅在相对较高的浓度下有效,其在水相缓蚀中的应用往往受到限制。高分子表面活性剂,一类独特的缓蚀剂,保持消除与使用表面活性剂抑制腐蚀相关的挑战的潜力。由于它们的大分子聚合结构和大量的极性官能团,它们与金属表面牢固结合,并提供了优越的CIP。与传统的聚合物缓蚀剂相比,极性官能团的加入也有助于它们在大多数流行的基于工业的电解质中的溶解。用于缓蚀的聚合物表面活性剂中存在的一些主要官能团包括O(醚)、缩水甘油(环醚),-CONH2(酰胺),-COOR(酯),-SO3H(磺酸),-COOH(羧基),-NH2(氨基),-+NR3/-+NHR2/-+NH2R/-+NH3(季铵),-OH(羟基),-CH2OH(羟甲基),等。当前的观点提供了有关聚合物表面活性剂作为常规腐蚀抑制剂的新开发理想替代品的最新信息。工业规模扩大,胶体,协调,吸附性能,和聚合物表面活性剂的结构要求也已经基于从文献中获得的知识而建立。最后,挑战,缺点,和使用聚合物表面活性剂的潜在好处也进行了讨论。
Surfactants are well known for their colloidal and corrosion inhibition potential (CIP) due to their strong propensity to interact with metallic surfaces. However, because of their small molecular size and the fact that they are only effective at relatively high concentrations, their application in aqueous phase corrosion inhibition is often restricted. Polymeric surfactants, a unique class of corrosion inhibitors, hold the potential to eradicate the challenges associated with using surfactants in corrosion inhibition. They strongly bond with the metallic surface and offer superior CIP because of their macromolecular polymeric structure and abundance of polar functional groups. In contrast to conventional polymeric corrosion inhibitors, the inclusion of polar functional groups also aids in their solubilization in the majority of popular industry-based electrolytes. Some of the major functional groups present in polymeric surfactants used in corrosion mitigation include O (ether), glycidyl (cyclic ether), -CONH2 (amide), -COOR (ester), -SO3H (sulfonic acid), -COOH (carboxyl), -NH2 (amino), - + NR3/- + NHR2/- + NH2R/- + NH3 (quaternary ammonium), -OH (hydroxyl), -CH2OH (hydroxymethyl), etc. The current viewpoint offers state-of-the-art information on polymer surfactants as newly developing ideal alternatives for conventional corrosion inhibitors. The industrial scale-up, colloidal, coordination, adsorption properties, and structural requirements of polymer surfactants have also been established based on the knowledge obtained from the literature. Finally, the challenges, drawbacks, and potential benefits of using polymer surfactants have also been discussed.