Mannich bases as corrosion inhibitors: An extensive review

This comprehensive review provides a detailed overview of the use of Mannich bases as corrosion inhibitors, showcasing their promising results in preventing corrosion of diverse metals in various environments. The paper encompasses the synthesis of Mannich bases, including the reaction mechanism, influential synthesis factors, and recent advancements. We thoroughly examine the inhibition performance and corrosion inhibition mechanisms of Mannich bases, while also delving into the factors affecting their effectiveness and comparing them with other organic inhibitors. The review also explores the structure-activity relationships of Mannich bases, including insights into the impact of molecular structure on inhibition performance and quantitative structure-activity relationship studies. Furthermore, we review the diverse applications of Mannich bases as corrosion inhibitors across different industrial sectors and environmental conditions. In conclusion, the paper discusses the challenges and opportunities in developing Mannich bases as corrosion inhibitors, addressing limitations and proposing future prospects with a focus on eco-friendly and sustainable corrosion inhibition strategies.