Structure of Liquid Surfaces: X-ray Scattering Studies

这个项目的主要目标是发展和开展x射线散射实验，这将提高我们对液体表面基本特性的认识，并/或利用液体表面来模拟基本的二维统计现象。需要研究的两个现象包括：(i)二维Langmuir单层流体相热力学性质与二维短时位置顺序之间的关系；（ii）二元液体和聚合物刷等复杂体系润湿层沿表面法向的界面组成结构。直到最近，很少有实验方法能够获得关于液体微观表面结构的基本知识。通过该项目获得的信息可能产生的影响将是改进润滑、油漆、生物医学等液体基技术的开发程序。这个项目还将培养新一代的x射线散射科学家。

9872817PershanThe principal objective of this project is to develop and carry out x-ray scattering experiments that will improve our knowledge of the fundamental properties of the liquid surface and/or which will make use of the liquid surface to model fundamental two dimensional statistical phenomena. Two examples of phenomena to be studied include: (i) The relation between the thermodynamic properties of fluid phases of two dimensional Langmuir monolayers and the short range 2D positional order and (ii) The interfacial compositional structure along the surface normal of wetting layers of complex systems, such as binary liquids and polymer brushes.%%%Until recently there were few experimental methods capable of obtaining fundamental knowledge regarding the microscopic surface structure of liquids. Possible impact of information obtained through this project would be improved procedures for development of liquid based technologies such as lubrication, paints, biomedical, etc. This project will also educate a new generation of x-ray scattering scientists.