A Spectroscopic Study of the Surface Characteristics of Selected Copolymers

所选共聚物表面特性的光谱研究

• 批准号: 9204250
• 负责人: Eva Marand
• 金额: $ 7.62万
• 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: 1992
• 资助国家: 美国
• 起止时间: 1992-07-15 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9204250&HistoricalAwards=false
• 关键词: Spectroscopic; Study; Surface; Characteristics; Selected

The goal of this research is to gain an understanding of the surface molecular characteristics of selected copolymer systems based on poly(dimethylsiloxane). Composition profiles away from the surface and molecular orientation of the individual components will be studied as a function of the bulk chemical composition, molecular architecture, and molecular weight. Fourier transform infrared spectroscopy, employing attenuated total reflectance with barrier-layers, will be used as the primary method. The data will be compared with recent theoretical predictions on the surface ordering of diblock copolymers and established theories dealing with the ordering of copolymers in the bulk. The result of this research may lead to better theories in this field and have important implications in many practical aspects dealing with surface-related properties, such as adhesion and lubrication.

本研究的目的是了解基于聚二甲基硅氧烷的共聚物体系的表面分子特征。远离表面和单个组分的分子取向的组成剖面将作为整体化学组成、分子结构和分子量的函数进行研究。傅里叶变换红外光谱，采用衰减全反射与阻挡层，将被用作主要方法。这些数据将与最近关于二嵌段共聚物表面有序的理论预测和关于共聚物在体中的有序的已建立的理论进行比较。这一研究结果可能会为该领域提供更好的理论，并对处理表面相关性能（如粘附性和润滑性）的许多实际方面具有重要意义。