Polymer/composite materials have been commonly used as corrosion inhibitors in different fields such as marine, oil field, and engineering industry due to their self-healing and thermal stability features. Herein, novel polythiadiazole, namely poly[(2,6-dicarbonylpyridine)(2,5-dihydrazinyl-1,3,4-thiadiazole)] (AMTP) via the interaction of 2,5-dihydrazinyl-1,3,4-thiadiazole with pyridine-2,6-dicarbonyl dichloride and its composite with α-Al(OH)₃-gel were designed in a good yield. The structures of the fabricated materials are characterized by FT-IR, NMR, SEM, and UV–Vis analyses. The protective action of AMTP and α-Al(OH)₃@AMTP on the C1018-steel corrosion in molar-sulphuric acid was evaluated by potentiodynamic-polarization (PDP) and electrochemical impedance spectroscopic (EIS) methods. PDP findings presented that the AMTP polymer and α-Al(OH)₃@AMTP composite performed as mixed-type inhibitors. The protection capacities of 90.3 and 97.6% were obtained in the presence of optimum dose 100 mg/L of AMTP polymer and α-Al(OH)₃@AMTP composite, respectively. The compound's adsorption on C1018-steel follows the Langmuir isotherm model. The SEM/EDX outcomes reveal that the C1018-steel interface is inhibited by AMTP polymer and α-Al(OH)₃@AMTP composite. DFT calculations exhibited that the efficiency of the prepared materials correlates well with their electron contributing capability, whereas simulations of Monte Carlo exposed that the favorability and extent of adsorption of additive molecules metal interface establish their corrosion protection routines.

聚合物/复合材料由于其自愈性和热稳定性特点，已被广泛用作海洋、油田和工程工业等不同领域的缓蚀剂。在此，新型聚噻二唑，即聚[(2,6-二羰基吡啶)(2,5-二肼基-1,3,4-噻二唑)] (AMTP)，通过 2,5-二肼基-1,3,4-噻二唑与吡啶-2,6-二羰基二氯化物及其与α-Al(OH) _{3 -}凝胶的复合物以良好的产率设计。所制备材料的结构通过 FT-IR、NMR、SEM 和 UV-Vis 分析进行表征。AMTP和α-Al(OH) ₃的保护作用@AMTP 通过动电位极化 (PDP) 和电化学阻抗光谱 (EIS) 方法评估了摩尔硫酸中 C1018-钢腐蚀。PDP 研究结果表明，AMTP 聚合物和 α-Al(OH) ₃ @AMTP 复合材料作为混合型抑制剂。在最佳剂量为 100 mg/L 的 AMTP 聚合物和 α-Al(OH) ₃ @AMTP 复合材料的存在下，分别获得了 90.3% 和 97.6% 的保护能力。该化合物在 C1018 钢上的吸附遵循朗缪尔等温线模型。SEM/EDX 结果表明 C1018-钢界面被 AMTP 聚合物和 α-Al(OH) ₃抑制@AMTP 复合材料。DFT 计算表明，所制备材料的效率与其电子贡献能力密切相关，而蒙特卡罗模拟表明，添加剂分子金属界面的有利性和吸附程度建立了它们的腐蚀保护程序。