U.S.-Germany Cooperative Research: Structural Dynamics and Control of Non-Equilibrium Polymer Layers

美德合作研究：非平衡聚合物层的结构动力学与控制

• 批准号: 0217721
• 负责人: Robert Tilton
• 金额: $ 1.53万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-01 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0217721&HistoricalAwards=false
• 关键词: U.S.; Germany; Cooperative; Research; Structural

0217721TiltonThis award supports Robert Tilton and a student from Carnegie Mellon University in a collaboration with Per Claesson of the Department of Chemistry at the Royal Institute of Technology in Stockholm, Sweden. The project will focus on manipulation of the molecular-level structure of adsorbed polymer layers on solid surfaces. The manipulation is achieved by introducing surfactants hat bind with varying affinities to different segments of the polymer as it adsorbs. Particular attention will be paid to non-equilibrium configurations in the adsorbed layers and to the dynamics of their transformations. The goal is to develop techniques to design long-lived metastable layer configurations that are optimized for technological applications. The collaboration combines the distinct, but highly complementary, approaches taken by the Swedish and US groups: the US side uses optical and spectroscopic methods to characterize composition and micro-environmental aspects of adsorbed layers and the Swedish side uses surface force measurement to characterize the structure and mechanics of the layers. A key aspect of the collaboration is the initiation of a graduate student exchange between the US and Swedish groups.

0217721Tilton 该奖项支持 Robert Tilton 和卡内基梅隆大学的一名学生与瑞典斯德哥尔摩皇家理工学院化学系的 Per Claesson 合作。 该项目将重点关注固体表面上吸附聚合物层的分子级结构的操纵。 该操作是通过引入表面活性剂来实现的，表面活性剂在吸附时以不同的亲和力与聚合物的不同片段结合。 将特别关注吸附层中的非平衡构型及其转变的动力学。 目标是开发技术来设计针对技术应用进行优化的长寿命亚稳态层配置。 此次合作结合了瑞典和美国团体所采取的独特但高度互补的方法：美国方面使用光学和光谱方法来表征吸附层的成分和微环境方面，而瑞典方面则使用表面力测量来表征结构和层的力学。 此次合作的一个关键方面是启动美国和瑞典团体之间的研究生交流。