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.

技术概要：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级结构的新聚合物材料。 开发新型能源相关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，重点关注允许快速运输的关键亲水相。 该项目将使用先进的核磁共振方法结合电子显微镜、电导率测量和运输模拟，建立与中尺度运输和对齐相关的模型，以确定质子电导率等重要的整体性质。 Madsen还将开发使用各种溶剂、退火以及电场和磁场控制形态的方法。 这些调查将批判性地告知处理协议和合理的合成策略。的大学教育计划将带来先进的聚合物核磁共振弗吉尼亚理工大学通过新颖的实验室会议和研究生课程。 一个K-5计划将使教师和学生与女孩和家长一起发展科学直觉，从而培养未来的科学家。 氢燃料电池是未来可持续能源生产和分配循环中一个有前途的环节，而全球对清洁水的需求越来越需要先进的净化技术。 水和能源是我们在这个星球上实现可持续生活的最迫切需求。 先进的聚合物可以填补这些角色，但需要进一步的发展，进入日常使用。这个项目，由教授路易斯马德森在弗吉尼亚理工大学，将重点揭示先进的聚合物用于水净化和燃料电池的新的和关键的方面。 为了深入了解这些材料并提高性能，Madsen将应用广泛的分析和计算机建模技术。 这些基础研究有望大大提高电力和清洁水的生产。的项目计划包括对有前途的大学生的教育，以及对K-5女孩及其父母的宣传。 后一个计划的目的是建立强大的未来科学家从一组仍然在今天利用不足？的劳动力。 马德森计划利用这些基础研究问题的相关性，以所有公民以及他熟悉？事情是怎么运作的来推动参与者的参与。