Small-Angle X-ray Scattering

小角X射线散射

• 批准号: 505274593
• 金额: --
• 依托单位: Universität Münster
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/505274593?language=en
• 关键词: Small; Angle; ray; Scattering

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.

明斯特大学化学与药学系的许多研究小组，包括Gröschel小组，都在研究由合成、生物和无机成分构建的功能性纳米材料的合成和表征。因此，Gröschel小组专注于块状，薄膜和溶液中的嵌段共聚物纳米结构，以及基于聚合物的介孔材料，聚合物/金属混合物，纳米结构胶体和纳米颗粒晶体。小角X射线散射（SAXS）系统的获得旨在填补Gröschel小组用于结构表征的方法中的空白。超结构的分析涉及在1-300 nm范围内的不同长度尺度上测量中间和最终结构，这需要具有超高分辨率的SAXS和广角（WAXS）检测。该方法提供了关于纳米结构的长程有序、对距离分布函数、大样品体积上的平均结构特征的信息，并且允许以下形态转变（例如，通过退火、光刺激或其他刺激）。有关结构转变的信息对于更好地理解形成机制和结构-性质关系特别感兴趣。SAXS方法目前在化学和药学系或明斯特大学及其附属研究所还没有。