Illustrating consistency of different experimental approaches to probe the buried polymer/metal interface using sum frequency generation vibrational spectroscopy.
Illustrating consistency of different experimental approaches to probe the buried polymer/metal interface using sum frequency generation vibrational spectroscopy.
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在本文中，我们证明了我们的能力，直接探测的掩埋聚合物/金属界面的分子结构，使用和频产生（SFG）振动光谱。通过比较和分析不同实验方法得到的光谱数据，推断出了聚合物/金属界面（聚甲基丙烯酸正丁酯（PBMA）/银（Ag）界面）的分子有序信息.固体光谱证据表明，我们成功地检测到从掩埋PBMA/Ag界面产生的分子振动信号。结果表明，PBMA/Ag界面上的侧丁基甲基是极性有序的，并且与空气中PBMA表面的侧丁基甲基具有不同的取向有序。我们相信，这项研究将提供一个有用的实验和分析框架SFG光谱探测掩埋的聚合物/金属界面在未来。
In this paper, we demonstrate our ability to directly probe the molecular structures of the buried polymer/metal interface using sum frequency generation (SFG) vibrational spectroscopy. Spectroscopic data from different experimental approaches were compared and analyzed to deduce the molecular ordering information at a buried polymer/metal interface, i.e. the poly(n-butyl methylacrylate) (PBMA)/silver (Ag) interface. Solid spectroscopic evidence suggested that we successfully detected the molecular vibrational signals generated from the buried PBMA/Ag interface. It was found that the side butyl methyl groups at the PBMA/Ag interface are polar-ordered and have different orientational ordering from those at the PBMA surface in air. We believe that this study will provide a useful experimental and analytical framework for the SFG spectroscopy to probe the buried polymer/metal interfaces in the future.