Spectroscopic imaging of water at the substrate / polymer interface was demonstrated by a new experimental set-up based on FTIR-ATR focal plane array (FPA) imaging and simultaneous electrochemical impedance spectroscopy measurements. The local distribution of water at the substrate / polymer interfacial region could be imaged with a lateral resolution in the micrometer range. The kinetics of local water uptake vs exposure time on polymer coated Ge as well as on polymer coated and NaCl pre-contaminated Ge surfaces was obtained. The set-up can also be used to study interfacial processes at polymer coated thin film metallic or metal oxide surfaces.

中文翻译：

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暴露在腐蚀性环境中的埋入式基材/聚合物界面的光谱成像

通过基于FTIR-ATR焦平面阵列（FPA）成像和同时进行的电化学阻抗谱测量的新实验装置证明了底物/聚合物界面上水的光谱成像。可以在微米范围内以横向分辨率对基材/聚合物界面区域上水的局部分布进行成像。获得了在聚合物涂覆的Ge上以及在聚合物涂覆的和NaCl预污染的Ge表面上局部吸水动力学与暴露时间的关系。该装置还可用于研究聚合物涂覆的薄膜金属或金属氧化物表面的界面过程。