Vibrational Energy Transfer and Shock Waves in Molecular Materials

分子材料中的振动能量传递和冲击波

• 批准号: 9714843
• 负责人: Dana Dlott
• 金额: $ 36万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714843&HistoricalAwards=false
• 关键词: Vibrational; Energy; Transfer; Shock; Waves

9714843 Dlott The goal of this work is to understand the mechanical dynamics of molecular materials, and to relate the dynamics to chemical reactivity and function. The proposed work falls into two distinct areas, (1) vibrational energy transfer and (2) shock waves in materials. Simple liquids, such as acetonitrile and water, and solids such as naphthalene which are of current theoretical interest will be studied. Shock waves will be used to study shock-induced chemical reactions in simple model systems, and shock-induced material transformations and relaxation processes in complex systems such as glasses and proteins. Shock methods with greater time resolution using surface sensitive spectroscopies will be developed. Studies of laser photothermal imaging materials will be extended to a variety of imaging materials with different architectures to develop a general understanding of the fundamentals of laser photothermal imaging processing. %%% An understanding of ultrafast dynamics and shock wave induced chemistry in condensed matter systems that include liquids and solutions, polymeric solids and proteins play an important role in a number of materials areas such as biomedical applications, and photothermal laser-imaging materials for graphic arts applications. ***

小行星9714843 这项工作的目标是了解分子材料的力学动力学，并将动力学与化学反应性和功能联系起来。 所提出的工作福尔斯两个不同的领域，（1）振动能量传递和（2）材料中的冲击波。 简单的液体，如乙腈和水，和固体，如萘，这是目前的理论兴趣将被研究。 冲击波将用于研究简单模型系统中冲击诱导的化学反应，以及玻璃和蛋白质等复杂系统中冲击诱导的材料转化和弛豫过程。 将开发使用表面敏感光谱仪的具有更高时间分辨率的冲击方法。 激光光热成像材料的研究将扩展到具有不同结构的各种成像材料，以发展对激光光热成像处理的基本原理的一般理解。 超快动力学和冲击波诱导的凝聚态系统，包括液体和溶液，聚合物固体和蛋白质化学的理解发挥了重要作用，在一些材料领域，如生物医学应用，和光热激光成像材料的图形艺术应用。 ***