Raman Scattering Applied to Polymer Liquid Dynamics

拉曼散射在聚合物液体动力学中的应用

• 批准号: 9522642
• 负责人: Gerald Fuller
• 金额: $ 25.5万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-04-15 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9522642&HistoricalAwards=false
• 关键词: Raman; Scattering; Applied; Polymer; Liquid

9522642 Fuller This proposal involves research into the dynamics and structure of multi-component polymeric materials. Several problems will be investigated in the course of this work, and will make use of a newly developed rheo-optical method available in our laboratory: polarization modulated Raman scattering (PMRS). The primary objectives of the work are the following: 1. Development of Two-Dimensional Raman Scattering (2D-RS), 2. Orientational dynamics of homopolymer melts near the glass transition, 3. Dynamics of compatible polymer blends, and 4. Flow-induced Migration in Polymer Solutions. %%% This work provides a molecular-level basis and rheo-optical technique to understand flow phenomena and dynamics among polymeric materials during flow, processing, molding, and solidification. ***

[9522642 .富勒]这项建议涉及多组分高分子材料的动力学和结构研究。在这项工作的过程中，将研究几个问题，并将利用我们实验室新开发的流变光学方法：偏振调制拉曼散射（PMRS）。这项工作的主要目标如下：二维拉曼散射（2D-RS）的研究进展；均聚物在玻璃化转变附近熔体的取向动力学，3。3 .相容性聚合物共混物动力学；聚合物溶液中的流动诱导迁移。这项工作为了解聚合物材料在流动、加工、成型和凝固过程中的流动现象和动力学提供了分子水平的基础和流变光学技术。＊＊＊