Structured Ionic Liquids for Functional Products

用于功能性产品的结构离子液体

• 批准号: 1033878
• 负责人: Paschalis Alexandridis
• 金额: $ 28.98万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1033878&HistoricalAwards=false
• 关键词: Structured; Ionic; Liquids; Functional; Products

1033878AlexandridisBackground & Motivation Ionic liquids (ILs), organic salts that are fluid at ambient conditions, are a novel class of compounds with a combinatorially great molecular diversity and unique properties. The very low volatility and high thermal and chemical stability that many ILs exhibit, render them promising as solvents. Underscoring the successes of ILs as reaction media and in dissolving the otherwise insoluble cellulose and carbon nanotubes, are the multiple intermolecular interactions that ILs afford. The broad goal is the development of fundamental knowledge to support and guide the next generation applications of ionic liquids in formulated chemicals or functional products, i.e., multi component systems that are rationally designed to meet specific end use requirements. Internal structure over multiple length scales is important in all functional products. ILs are uniquely suited to facilitate structuring on the basis of the short and long range interactions inherent in their chemistry. In addition to structure, mobility is an important consideration in IL containing products. Statement of Objectives The investigators base the proposed research on the premise that fundamental understanding of interactions of ionic liquids with molecular solvents, amphiphiles, polymers, proteins, and nanoparticles is an enabling stage toward the rational formulation and structure property optimization of ionic liquid-based complex fluids, soft materials, nanomaterials, and hybrids, as well as consumer products and devices that incorporate the above materials. Multiple interactions, often subtle, act in tandem in such multi component systems, but their manifestation in system properties can be profound. To this end, the investigators aim to (i) establish operating intermolecular interactions in binary IL-amphiphile systems as reflected in structure and dynamics, (ii) pursue synergisms by characterizing molecular organization in multi component systems consisting of ILs, molecular solvents, amphiphiles, and polymers, and (iii) assess IL-amphiphile blends for their ability to accommodate salts or nanoparticles, thus facilitating the advancement to formulated products. Having real life applications in mind, the investigators will tailor our efforts to ionic liquid-polymer systems that are relevant as electrolytes in lithium batteries, and to IL-nanoparticle systems for dye-sensitized solar cells. Intellectual Merit: The proposed research will enhance the fundamental understanding of ionic liquid + nanoparticle hybrid systems, where nanoparticle is used here broadly to encompass materials that are hard/inorganic or soft/organic, macromolecular or supramolecular, natural or synthetic. The integration of this knowledge into the rational design and development of IL-based products could have a potentially transformative effect in what is currently a nascent activity. Other novel aspects include the characterization of blends of ionic liquids, of IL + solvent mixtures and of IL + nanoparticle dispersions with respect to their structuring ability and dynamics. Also, the comparison of IL + amphiphile systems and molecular solvent + amphiphile systems. Broader Impacts: This research will have a positive and timely impact on efforts directed toward the development and commercialization of batteries, fuel cells and solar cells that incorporate ILs. Information on interactions between ionic liquids and water, organic solvents, (bio)surfactants and/or (bio)polymers will prove valuable in assessing the impact of ILs on human health and their fate in the environment. The findings should also be beneficial to the analytical chemistry applications of ILs. This project will integrate research and education by incorporating lectures and projects related to ionic liquids, structuring and functional products in the various courses that the PI teaches at both the undergraduate and graduate levels. The PI together with undergraduate students will develop and offer outreach activities geared toward high school and 1st year college students.

1033878Alexandridisbackground＆动机离子液体（ILS），在环境条件下流体的有机盐是具有综合分子多样性和独特特性的新型化合物。许多IL表现出非常低的波动性和高热和化学稳定性，使它们成为溶剂。强调IL作为反应介质的成功以及溶解原本不溶性的纤维素和碳纳米管的成功是ILS提供的多种分子间相互作用。 广泛的目标是开发基本知识，以支持和指导离子液体在配制化学品或功能产品中的下一代应用，即合理设计以满足特定最终用途要求的多组件系统。多个长度尺度上的内部结构在所有功能产品中都很重要。 IL非常适合根据其化学固有的短和远距离相互作用来促进结构。除结构外，迁移率是含有IL产品的重要考虑因素。目的的声明研究人员基于以下前提的拟议研究，即对离子液体与分子溶剂，两亲物，聚合物，蛋白质和纳米颗粒的相互作用的基本了解是迈向理性配方和结构的阶段，该阶段是逐渐优化的，材料，软材料，纳米生产和杂种以及材料以及杂种以及材料以及杂种以及材料以及杂物以及材料以及材料以及杂种以及杂物以及材料。多种相互作用（通常是微妙的）在此类多组件系统中串联起作用，但是它们在系统属性中的表现可能是深刻的。为此，研究人员的目的是（i）在结构和动态中反映在二进制IL-amphiphile系统中的运行间分子间相互作用，（ii）通过在多组件中表征分子组织来追求协同作用，这些组件在多组件中，由ILS，分子替代物，可容纳的能力或（IIII）评估iii和（iiii）的能力，以及III III的能力iii colled-ill-ill-ill-illent in iii colleds iii colleds iii，纳米颗粒，从而促进了制定产品的进步。考虑到现实生活中的应用，研究人员将定制我们的努力，以与锂电池中与电解质相关的离子液聚合物系统，以及用于染料敏化太阳能电池的IL-Nanoparpicle系统。智力优点：拟议的研究将增强对离子液体 +纳米颗粒混合系统的基本理解，在此，这里广泛使用纳米颗粒来涵盖硬/无机或软/有机，大分子，大分子或超分子或超分子，天然或合成的材料。将这些知识集成到基于IL的产品的合理设计和开发中，可能会对当前的新生活动产生潜在的变革作用。 其他新颖的方面包括对离子液体，IL +溶剂混合物以及IL +纳米颗粒分散体的结构的结合的表征。同样，IL + Amphiphile系统和分子溶剂 +两亲动物系统的比较。更广泛的影响：这项研究将对针对融合IL的电池，燃料电池和太阳能电池开发和商业化的努力产生积极和及时的影响。有关离子液体与水之间相互作用，有机溶剂，（BIO）表面活性剂和/或（BIO）聚合物之间相互作用的信息将被证明在评估ILS对人类健康及其在环境中的命运的影响很有价值。这些发现也应对IL的分析化学应用有益。该项目将通过将与离子液体，构造和功能性产品相关的讲座和项目结合到PI在本科和研究生一级教授的各种课程中进行整合。 PI与本科生一起将开发并提供针对高中和一年级大学生的外展活动。