AbstractThe crystalline structures of isotactic polypropylene (iPP) thin films were investigated using grazing incident wide-angle X-ray diffraction (GIWAXD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The out-of-plane (110) reflection split with 99° inclination in the GIWAXD pattern. The film surface was covered with flat-on mother lamellae with orthogonal daughter lamellae. The cross-sectional TEM image and the fast Fourier transform-processed image showed vertically aligned daughter lamellae and cross-hatched lateral mother lamellae. Flat-on lamellae may be preferentially produced at the substrate interface, after which the mother lamellae may yield daughter lamellae from the ac plane to give vertically aligned lamellae. The daughter lamellae yield in-plane lamellae with flat-on alignment from the ac plane, resulting in the global growth of a cross-hatched lamellar structure.Grazing incidence wide-angle X-ray diffraction study of lamellar orientation in isotactic polypropylene thin films. Crystalline structure of isotactic polypropylene (iPP) thin films was investigated by means of grazing incident wide-angle X-ray diffraction, atomic force microscopy, and transmission electron microscopy. Flat-on mother lamellae with orthogonal daughter lamellae form in the thin film. We propose a lamellar growth model for iPP thin films in which the crystallization progresses flat-on mother lamellae at the substrate interface to out-of-plane growth of daughter lamellae from the mother lamellae.

中文翻译：

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等规聚丙烯薄膜的层状取向：通过掠入射 X 射线衍射和表面/横截面成像的补充研究

摘要 采用掠入射广角 X 射线衍射 (GIWAXD)、原子力显微镜 (AFM) 和透射电子显微镜 (TEM) 研究了等规聚丙烯 (iPP) 薄膜的晶体结构。平面外 (110) 反射在 GIWAXD 图案中以 99° 的倾角分开。薄膜表面覆盖有具有正交子层的平坦母层。横截面 TEM 图像和快速傅立叶变换处理的图像显示垂直排列的子片和交叉阴影的横向母片。可优先在基板界面处产生平贴薄片，之后母薄片可从交流平面产生子薄片以提供垂直对齐的薄片。子薄片产生平面内薄片，与交流平面对齐，导致交叉影线层状结构的整体增长。等规聚丙烯薄膜层状取向的掠入射广角X射线衍射研究。通过掠入射广角 X 射线衍射、原子力显微镜和透射电子显微镜研究等规聚丙烯 (iPP) 薄膜的晶体结构。在薄膜中形成具有正交子层的平坦母层。我们提出了一种用于 iPP 薄膜的层状生长模型，其中结晶在基板界面处的母片平坦地进行到来自母片的子片的面外生长。等规聚丙烯薄膜层状取向的掠入射广角X射线衍射研究。通过掠入射广角 X 射线衍射、原子力显微镜和透射电子显微镜研究等规聚丙烯 (iPP) 薄膜的晶体结构。在薄膜中形成具有正交子层的平坦母层。我们提出了一种用于 iPP 薄膜的层状生长模型，其中结晶在基板界面处的母片平坦地进行到来自母片的子片的面外生长。等规聚丙烯薄膜层状取向的掠入射广角X射线衍射研究。通过掠入射广角 X 射线衍射、原子力显微镜和透射电子显微镜研究等规聚丙烯 (iPP) 薄膜的晶体结构。在薄膜中形成具有正交子层的平坦母层。我们提出了一种用于 iPP 薄膜的层状生长模型，其中结晶在基板界面处的母片平坦地进行到来自母片的子片的面外生长。在薄膜中形成具有正交子层的平坦母层。我们提出了一种用于 iPP 薄膜的层状生长模型，其中结晶在基板界面处的母片平坦地进行到来自母片的子片的面外生长。在薄膜中形成具有正交子层的平坦母层。我们提出了一种用于 iPP 薄膜的层状生长模型，其中结晶在基板界面处的母片平坦地进行到来自母片的子片的面外生长。