中文摘要：

合成了新型Schiff碱缓蚀剂：1，5-二甲基-2-苯基-4-（4-羟基苯亚甲胺）-3-吡唑啉酮（MBAP）．采用UV-vis和FT-IR对其结构进行了表征．采用电化学交流阻抗（EIS）和极化曲线测试方法，研究了不同浓度的缓蚀剂MBAP-乙醇溶液在0．5mol／LNaCl溶液中对紫铜防腐蚀性能的影响．结果表明，随着缓蚀剂-乙醇溶液浓度的增大，缓蚀剂对紫铜的缓蚀效率增大．当加入0．5mol／LNaCl溶液中的缓蚀剂-乙醇溶液浓度为2．0mmol／L时，缓蚀效率达到最大值．MBAP通过化学和物理吸附两种形式在铜表面形成自组装膜，起到良好的防腐蚀性能．

英文摘要：

4-（4-hydroxybenzylideneamino）-1,5-dimethyl-2-phenyl-lH-pyrazol-3（2H）-one （MBAP） is syn- thesized as a corrosion inhibitor. The structure is characterized by melting point test, UV-Vis spectrum and FT-IR spectrum. Electrochemical impedance spectroscopy （EIS） and polarization curves testing methods are used to investigate the corrosion properties of copper in 0.5 mol/L NaC1 solution with or without differeflt concentrations of MBAP-ethanol solution. Results show that the compound is target compound. The inhibition efficiency （IE） increases with the increas- ing inhibitor concentration. IE reaches to a higher value in 0.2 mmol/L MBAP-ethanol solution according to the test results. The adsorption of MBAP on the copper surface occurrs via both physical and chemical adsorption followed the Langmuir adsorption isotherm.