CAREER: Understanding and Controlling Anisotropy and Transport in Lonomers

职业：理解和控制离聚物的各向异性和输运

• 批准号: 0844933
• 负责人: Louis Madsen
• 金额: $ 47.5万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-02-01 至 2015-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0844933&HistoricalAwards=false
• 关键词: CAREER; Understanding; Controlling; Anisotropy; Transport

TECHNICAL SUMMARY:Efficient fuel cells, reverse-osmosis membranes, and ?artificial muscle? actuators require new polymeric materials with finely controlled molecular and nanoscale structures. Developing new classes of energy-related materials represents a pivotal step toward sustainability.Madsen (PI) will undertake characterizations of molecular alignment and nanoscale morphology in phase-separated ionic polymers, focusing on the critical hydrophilic phase that allows fast transport. This project will build models relating mesoscale transport and alignment to important bulk properties such as proton conductivity using advanced NMR methods in combination with electron microscopy, conductivity measurements, and transport simulations. Madsen will additionally develop methods for controlling morphology using various solvents, annealing, and electric and magnetic fields. These investigations will critically inform processing protocols and rational synthetic strategies.Madsen?s university education program will bring advanced polymer NMR to Virginia Tech via novel lab sessions and a graduate course. A K-5 program will bring faculty and students together with girls and parents to develop scientific intuition, thus initiating future scientists. NON-TECHNICAL SUMMARY:Hydrogen fuel cells form a promising link in future sustainable energy production and distribution cycles, while clean water needs worldwide are increasingly demanding advanced purification techniques. Water and energy represent our most pressing needs for sustainable life on this planet. Advanced polymers can fill these roles, but require further development to enter everyday use.This project, directed by Prof. Louis Madsen at Virginia Tech, will focus on revealing new and pivotal aspects of advanced polymers used in water purification and in fuel cells. In order to understand these materials in depth and improve performance, Madsen will apply a broad range of analysis and computer modeling techniques. These fundamental studies hold promise for greatly enhancing power and clean water production.Madsen?s project plans encompass education of promising university students, and also outreach to K-5 girls and their parents. The latter program aims to build strong future scientists from a group still under-utilized in today?s workforce. Madsen plans to use the relevance of these basic research issues to all citizens as well as his familiarity with ?how things work? all around us to drive participant engagement.

技术概述：高效燃料电池、反渗透膜和人造肌肉？致动器需要具有精细控制的分子和纳米结构的新型聚合物材料。开发与能源相关的新型材料是迈向可持续发展的关键一步。Madsen(PI)将对相分离离子聚合物的分子排列和纳米级形态进行表征，重点关注允许快速传输的关键亲水相。该项目将使用先进的核磁共振方法，结合电子显微镜、电导率测量和传输模拟，建立将中尺度传输和排列与重要的整体属性(如质子电导率)联系起来的模型。马德森还将开发使用各种溶剂、退火以及电场和磁场来控制形貌的方法。这些研究将为加工方案和合理的合成策略提供关键信息。马德森？S大学教育项目将通过新颖的实验室课程和研究生课程将先进的聚合物核磁共振带到弗吉尼亚理工大学。K-5项目将把教职员工和学生与女孩和父母聚集在一起，发展科学直觉，从而启动未来的科学家。非技术综述：氢燃料电池在未来的可持续能源生产和分配周期中形成了一个有希望的纽带，而世界各地的清洁水需求越来越需要先进的净化技术。水和能源代表着我们对这个星球上可持续生命最紧迫的需求。先进聚合物可以填补这些角色，但需要进一步开发才能进入日常使用。该项目由弗吉尼亚理工大学的Louis Madsen教授指导，将重点揭示用于水净化和燃料电池的先进聚合物的新的关键方面。为了深入了解这些材料并提高性能，马德森将应用广泛的分析和计算机建模技术。这些基础研究有望极大地提高电力和清洁水的生产。马德森？S项目计划包括对有前途的大学生的教育，也包括对K-5女孩及其父母的接触。后一项计划旨在从今天仍未得到充分利用的一群人--S劳动力中培养出强大的未来科学家。马德森计划利用这些基础研究问题与所有公民的相关性，以及他对事物如何运作的熟悉程度？围绕在我们周围，推动参与者参与度。