AbstractWide-angle and small-angle X-ray scattering measurements were performed simultaneously using an X-ray beam 1 μm in size to detect the inner structure of a spherulite of poly(ethylene adipate) [PEA, –(O(CH2)2OCO(CH2)4CO–)n–]. The lamellae were found to twist periodically by 180° in the area between the neighboring bright rings observed in the polarized optical microscope image of the spherulite. However, as known from the discontinuity between the repeated lamellar zones discovered by Woo et al. (Macromolecules, 45:1375–1383, 2012), the twisted lamellae must not be assumed to be continuously twisted long plates spreading out over the spherulite. Rather, these lamellae should be considered to have limited areas of ~7 μm in length along the radial direction and with disconnected end zones. The present X-ray scattering data revealed the structural relation between the repeated arrays of the disconnected lamellar blocks and the 180° twisting phenomenon, which occurs only in the finite and disconnected flat-on lamellar zones.Designer supramolecular polymers are a growing field of polymer materials. The designability and flexibility in their structures and functionality have attracted a great deal of attention in polymer science, as well as in supramolecular chemistry. These polymeric structures are formed from one or more molecular components via reversible bonds; therefore, monomeric and polymeric states are in equilibrium on the relevant experimental timescale. The dynamic nature of supramolecular polymers in terms of chain lifetime and conformational flexibility are determined by external conditions. This adaptivity can result in stimuli-responsive structures and properties. This article describes the use of our host–guest structures based on a calix[5]arene, a bisporphyrin, and a self-assembled capsule in the synthesis of supramolecular polymers.

中文翻译：

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同步加速器X射线微束技术研究聚己二酸乙二酯球晶中扭曲现象与叠片结构不连续性的关系

摘要使用 1 μm 大小的 X 射线束同时进行广角和小角 X 射线散射测量，以检测聚（己二酸乙二酯）[PEA, –(O(CH2)2OCO(O(CH2)2OCO( CH2)4CO-)n-]。发现薄片在球晶的偏振光学显微镜图像中观察到的相邻亮环之间的区域中周期性地扭曲 180°。然而，正如 Woo 等人发现的重复层状区域之间的不连续性所知。(Macromolecules, 45:1375–1383, 2012)，不能假设扭曲的薄片是在球晶上展开的连续扭曲的长板。相反，这些薄片应被视为沿径向具有约 7 μm 长度的有限区域，并且具有不连续的端部区域。目前的 X 射线散射数据揭示了不连续层状块的重复排列与 180°扭曲现象之间的结构关系，这种现象仅发生在有限且不连续的平坦层状区域中。设计师超分子聚合物是一个不断发展的聚合物领域材料。其结构和功能的可设计性和灵活性在聚合物科学以及超分子化学中引起了极大的关注。这些聚合物结构由一种或多种分子组分通过可逆键形成；因此，单体和聚合状态在相关实验时间尺度上处于平衡状态。超分子聚合物在链寿命和构象灵活性方面的动态性质由外部条件决定。这种适应性可以导致刺激响应结构和特性。本文描述了我们基于杯[5]芳烃、双卟啉和自组装胶囊的主客体结构在超分子聚合物合成中的应用。