Corrosion is still globally a major financial challenge and requires new materials development so that energy and resources can be saved more effectively. Suitable advanced coatings for metals shall first hinder corrosion. When corrosion still occurs, the coating shall emit a signal to allow timely maintenance before metallic structure is too much damaged. We prepared copolymers that can release corrosion inhibitors, 5-(aminomethyl)-8-hydroxyquinoline (AM8HQ) and benzotriazole (BTA), upon acidic hydrolysis of imine and hemiaminal ether linkages. Furthermore, a fluorescent molecule is attached to the copolymer via thiopropionate groups. Hydrolysis of the latter group and release of the fluorescent sensor occurs after release of the inhibitors. Corrosion rates of steel substrates coated with the pH-responsive polymers are dramatically reduced and fluorescence are detected upon onset of corrosion.

腐蚀仍然是全球范围内的主要财务挑战，需要开发新材料，以便可以更有效地节省能源和资源。合适的金属高级涂料应首先防止腐蚀。当仍然发生腐蚀时，涂层应发出信号，以便在金属结构损坏过多之前及时进行维护。我们制备了在酸性水解亚胺和半胺醚键后可以释放腐蚀抑制剂5-（氨基甲基）-8-羟基喹啉（AM8HQ）和苯并三唑（BTA）的共聚物。此外，荧光分子通过硫代丙酸酯基团。后一组的水解和荧光传感器的释放发生在抑制剂释放之后。涂有pH响应聚合物的钢基材的腐蚀速率大大降低，腐蚀开始时就检测到荧光。