Infrared multiple-angle incidence resolution spectrometry (IR-MAIRS) has been employed to study molecular orientation in a thin film of poly(2-perfluorooctylethyl acrylate) (C8FA) coated on a Si substrate. Since the coated C8FA film exhibits a highly effective water and oil repellency, the structure−property relationship has intensively been studied mainly by use of X-ray diffractometry (XRD) thus far. Regardless, XRD provides details of molecular structure only for the crystallized parts in the film, and as a result a limited region of the perfluoroalkyl group is selectively analyzed. To overcome this analytical limitation, IR-MAIRS has first been employed for analysis of a polymer thin film coated on a solid substrate. The discussion after the IR-MAIRS measurements coupled with XRD analysis provided details not only in the polymer thin film but also about structure of the substrate surface, through which a structure determination factor of the polymer film has been revealed.

中文翻译：

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聚（2-全氟辛基丙烯酸乙酯）浸涂薄膜中分子结构的红外多角度入射分辨光谱分析

红外多角度入射分辨光谱法（IR-MAIRS）已用于研究涂在Si衬底上的聚（2-氟代丙烯酸全氟辛基乙酯）（C8FA）薄膜中的分子取向。由于涂覆的C8FA膜表现出高效的拒水拒油性，因此到目前为止，主要通过使用X射线衍射仪（XRD）对其结构-性能关系进行了深入研究。无论如何，XRD仅提供膜中结晶部分的分子结构细节，因此有选择地分析了全氟烷基的有限区域。为了克服这一分析限制，IR-MAIRS首先用于分析涂覆在固体基材上的聚合物薄膜。