Abstract: Self-assembled monolayer of 3-mercaptopropyltrimethoxysilane(MPS) adsorbed on the surface of silver was constructed and protection ability of the monolayer against corrosion in 0.1mol•L^-1 NaOH solution was studied by polarization techniques, contact angle and Auger electron spectra(AES).Results of polarization curves showed that the most effective MPS pretreatment concentration in ethanol was 0.1mmol•L^-1 for 6h.The corrosion potential, corrosion current density, polarization resistance and efficiency were obtained.Assembly mechanism was shown by contact angle and AES.

摘要： 用3-巯基丙基三甲氧基硅烷（MPS）在银电极表面制备了自组装单分子膜，研究了该组装膜在0.1mol•L^-1NaOH溶液中对银的防护作用.通过极化曲线、接触角及俄歇电子能谱等方法对组装膜的极化电阻、腐蚀电流及表面状况进行了研究表征，得到了最佳MPS组装液浓度为0.1mmol•L^-1和最佳组装时间为6h下的腐蚀电位、腐蚀电流密度、极化电阻和缓蚀率等结果.