Synthesis, Structure, and Properties of Oriented Conjugated Polymer Nanofibers

定向共轭聚合物纳米纤维的合成、结构与性能

• 批准号: 1103027
• 负责人: David Martin
• 金额: $ 37.5万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1103027&HistoricalAwards=false
• 关键词: Synthesis; Structure; Properties; Oriented; Conjugated

TECHNICAL SUMMARYThis project will investigate in detail the relationship between the chemistry, solid-state microstructure, and macroscopic charge transport properties of solution-processable conjugated polymers. Aligned assemblies of conjugated nanofibers will be created and their performance measured both parallel and perpendicular to the direction of the molecular backbone. The microstructure will be examined in using optical and electron microscopy, with a particular focus on defect structures observed by low dose electron diffraction and high resolution electron microscopy. Electrical properties will be measured over a range of frequencies using impedance spectroscopy. The primary materials of interest will be functionalized poly(propylene dioxythiophenes) (Poly(ProDOT+)) using monomers designed and synthesized in the PI's laboratory.NON-TECHNICAL SUMMARYThis research project will provide fundamental information about the structure and properties of conjugated polymers; plastics that can conduct electricity. These materials are of interest for a variety of devices including biomedical electrodes, chemical sensors, transistors, light-emitting diodes, and photovoltaics. These devices are providing improvements in health care, national security, and reducing our energy requirements. The project will provide direct support for graduate students in science and engineering, and will make it possible to continue current outreach activities with undergraduate students. The PI's research group will also continue established interactions with industrial and international collaborators.

技术概要本项目将详细研究可溶液加工的共轭聚合物的化学性质、固态微观结构和宏观电荷传输性质之间的关系。 共轭纳米纤维的对齐组件将被创建，并且平行和垂直于分子主链的方向测量它们的性能。 将使用光学和电子显微镜检查微观结构，特别关注通过低剂量电子衍射和高分辨率电子显微镜观察到的缺陷结构。 将使用阻抗谱法在一定频率范围内测量电特性。 主要材料将是PI实验室设计和合成的功能化聚（丙烯二氧噻吩）（Poly（ProDOT+））。非技术总结本研究项目将提供有关共轭聚合物的结构和性能的基本信息;塑料可以导电。 这些材料是感兴趣的各种设备，包括生物医学电极，化学传感器，晶体管，发光二极管，和photopolics。 这些设备正在改善医疗保健，国家安全，并减少我们的能源需求。 该项目将为科学和工程专业的研究生提供直接支助，并将使目前与本科生开展的外联活动得以继续。 PI的研究小组还将继续与工业和国际合作者建立互动。