Small-Angle X-ray Scattering

明斯特大学化学和药学系的许多研究小组，包括Gröschel小组，都致力于合成和表征由合成、生物和无机成分组成的功能纳米材料。因此，Gröschel小组专注于块状、薄膜和溶液中的嵌段共聚纳米结构，以及基于聚合物的介孔材料、聚合物/金属杂化材料、纳米结构胶体和纳米颗粒晶体。获得小角X射线散射(SAXS)系统的目的是填补Gröschel小组用于结构表征的方法中的一项空白。对超结构的分析包括在1-300 nm范围内测量不同长度尺度的中间和最终结构，这需要SAXS和广角(WAXS)超高分辨率的探测。该方法提供关于纳米结构的长程有序、对距离分布函数、大样本体积上的平均结构特征的信息，并允许随后的形态转变(例如，通过退火、光刺激或其他刺激)。有关结构过渡素的信息对于更好地理解形成机制和结构-性质关系特别有意义。化学和药剂系或明斯特大学及其附属机构目前还不能使用SAXS方法。

Many research groups of the Department of Chemistry and Pharmacy at the University of Münster, including the Gröschel group, deal with the synthesis and characterization of functional nanomaterials built from synthetic, biological and inorganic components. The Gröschel group thereby focuses on block copolymer nanostructures in bulk, thin films and solutions, as well as polymer-based mesoporous materials, polymer / metal hybrids, nanostructured colloids, and nanoparticle crystals. The acquisition of a small-angle X-ray scattering (SAXS) system is intended to close a gap in the methods used by the Gröschel group for structure characterization. Analysis of the superstructures involves measurements of the intermediate and final structure on different length scales in the range of 1-300 nm, which requires SAXS and wide-angle (WAXS) detection with ultra-high resolution. The method provides information on long-range order of the nanostructures, pair distance distribution functions, averaged structural features over large sample volumes, and allows following morphological transitions (e.g. through annealing, light stimulation or other stimuli). Information about structural transitoins is of particular interest for a better understanding of the formation mechanism and structure-property relationships. The method of SAXS is currently not available in the Department of Chemistry and Pharmacy or at the University of Münster and its affiliated institutes.