Shaping micro- and macroscopic properties of ionic liquid-solute systems: multifunctional task-specific (solvent, catalyst, water scavenger) agents

塑造离子液体-溶质系统的微观和宏观特性：多功能特定任务（溶剂、催化剂、水清除剂）剂

• 批准号: 29227708
• 负责人: Professorin Dr. Annegret Stark
• 金额: --
• 依托单位: Inyuvesi YakwaZulu-Natali (UKZN)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/29227708?language=en
• 关键词: Shaping; micro; macroscopic; properties; ionic

A multi-functional task-specific ionic liquid is developed to simultaneously act as a solvent, catalyst and water scavenger in a typical condensation reaction: the esterification. The research methodology includes the investigation of several homologous series of ionic liquids. Systematic calorimetric as well as physico-chemical studies (viscosity, density, electric conductivity) as functions of temperature and type and concentration of solute are performed in addition to kinetic experiments. The comprehensive data obtained is analyzed using a group contribution approach to elucidate the structure-property relationship of the ionic liquids with respect to their effects and performance in the esterification. In an iterative process, new generations of ionic liquids with optimized structural characteristics are synthesized to verify the predictions made by the group contribution approach. An interdisciplinary network between the universities of Jena and Leipzig and two groups in Freiburg is proposed in which each project in its own right contributes essentially to furthering the understanding of ionic liquid structure-property relationships. The four research groups will, however, mutually benefit from the complementary expertise of the partners in a network of chemical engineers, physicists, and chemists. New methods of generating physico-chemical data are validated with existing methodology, and the large set of data obtained from ionic liquids of known purity is shared within the network, thus enabling the partners to analyze the results from a cross-section of science: fundamental and theoretical as well as technological and experimental.

开发了一种多功能特定任务离子液体，可在典型的缩合反应（酯化反应）中同时充当溶剂、催化剂和水清除剂。研究方法包括对几种同系离子液体系列的研究。除了动力学实验之外，还进行系统量热以及物理化学研究（粘度、密度、电导率）作为温度、溶质类型和浓度的函数。使用基团贡献方法分析获得的综合数据，以阐明离子液体在酯化中的作用和性能的结构-性质关系。在迭代过程中，合成了具有优化结构特征的新一代离子液体，以验证基团贡献方法的预测。提议在耶拿大学和莱比锡大学以及弗莱堡的两个研究小组之间建立一个跨学科网络，其中每个项目本身都有助于加深对离子液体结构-性能关系的理解。然而，这四个研究小组将受益于化学工程师、物理学家和化学家网络中合作伙伴的互补专业知识。生成物理化学数据的新方法通过现有方法进行验证，并且从已知纯度的离子液体获得的大量数据在网络内共享，从而使合作伙伴能够分析科学交叉领域的结果：基础和理论以及技术和实验。