Block Polymer Routes to Robust Nanostructured Membrane Materials

阻断聚合物通往坚固纳米结构膜材料的途径

基本信息

批准号：
1006370
负责人：
Marc Hillmyer
金额：
$ 48万
依托单位：
University of Minnesota-Twin Cities
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2010
资助国家：
美国
起止时间：
2010-06-01 至 2016-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1006370&HistoricalAwards=false
关键词：
Block Polymer Routes Robust Nanostructured

项目摘要

TECHNICAL SUMMARY:Polymeric membranes are widely used in technologies ranging from municipal water treatment to food processing to industrial gas separations. The separation efficiency and flux across the membrane are two of the key factors that determine their ultimate utility. These figures of merit are closely tied to the nanoscale morphology of the membrane in many cases. Two strategies that utilize block polymers as the principal components for the preparation of various nanostructured membranes with tunable attributes are proposed. Block polymer self-assembly coupled with the integration of functional attributes into these hybrid macromolecules is a powerful and versatile platform for the preparation of advanced membrane materials. The proposed research activities build on the principal investigator's past efforts with functional block polymers that have resulted in efficient ultrafiltration, gas separation, and proton exchange membranes for applications in water purification, ammonia purification, and direct methanol fuel cells. Specific targets in the proposed work include nanostructured high-density polyethylene membranes by a self-assembly approach and nanostructured thermoset membranes by a reaction induced phase separation approach. The complete characterization of the resultant materials will be undertaken using a bevy of modern techniques and the implementation and testing of new membranes derived from these materials will be accomplished. The target materials described have tremendous potential to impact a broad swath of important technologies. The basic research and development emphasis will be aimed at new materials for water purification, battery, and fuel cell applications.NON-TECHNICAL SUMMARY:Membranes are thin sheets of material that can be used to purify a wide variety of heterogenous mixtures. Many industrially relevant membranes are made from polymers. Such polymeric membranes are currently used in technologies ranging from municipal water treatment to food processing to industrial gas separations. Membranes with higher efficiency and overall performance are targeted in this proposal. Strategies that rely on precision design and synthesis of innovative hybrid polymeric materials that can adopt complex but controlled nanostructures will be undertaken. The membranes generated in this work will be thoroughly characterized, evaluated, and compared to currently available materials. The technological implications of the proposed work are far-reaching and promise societal benefit. Water purification, lithium-ion battery and fuel cell technologies are far from maturity but are extremely important for global sustainability mandates. The basic research described in this proposal will provide the necessary fundamental underpinnings for the development of next-generation technologies in these areas. In addition to the basic research efforts, several outreach activities will be integrated into the overall program. As one example, a chemical demonstration show called "Energy and U" that emphasizes the important topic of energy (where it comes from, how it's used, and how it's converted) will be performed annually to over 3000 K-12 students.

技术摘要：聚合膜广泛用于从市政水处理到食品加工再到工业气体分离的技术。整个膜的分离效率和通量是决定其最终效用的两个关键因素。在许多情况下，这些优点数字与膜的纳米级形态紧密相关。提出了两种利用块聚合物作为制备各种具有可调属性的纳米结构膜的主要成分的策略。块聚合物自组装以及将功能属性集成到这些混合大分子中的整合是一个功能强大且通用的平台，用于制备高级膜材料。提出的研究活动是基于主要研究者过去的功能块聚合物的努力，从而导致有效的超滤，气体分离和质子交换膜，用于在水纯化，氨纯化和直接甲醇燃料电池中应用。拟议工作中的特定靶标包括通过自组装方法和纳米结构的热固性膜通过反应引起的相分离方法通过纳米结构的高密度聚乙烯膜。将使用一系列现代技术来完成所得材料的完整表征，并将完成从这些材料中得出的新膜的实施和测试。所描述的目标材料具有影响广泛的重要技术的巨大潜力。基础研究和开发重点将针对用于水净化，电池和燃料电池应用的新材料。没有技术摘要：膜是薄薄的材料薄片，可用于纯化各种异源混合物。许多与工业相关的膜都是由聚合物制成的。目前，这种聚合物膜用于从市政水处理到食品加工再到工业气体分离的技术。该提案针对具有较高效率和整体性能的膜。依赖于可以采用复杂但受控纳米结构的创新混合聚合物材料的精确设计和合成的策略。这项工作中产生的膜将得到彻底表征，评估和与当前可用的材料进行比较。拟议工作的技术含义是深远的，并且有望社会利益。净水，锂离子电池和燃料电池技术远非成熟，但对于全球可持续性授权非常重要。本提案中描述的基础研究将为这些领域的下一代技术开发提供必要的基本基础。除了基础研究工作之外，还将将一些外展活动纳入整个计划。作为一个例子，一个化学示范表明“ Energy and U”强调了重要的能量主题（来自何处，使用方式以及如何转换）将每年对3000多名K-12学生进行。