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 Fuller 该提案涉及多组分聚合物材料的动力学和结构研究。 在这项工作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：1. 二维拉曼散射 (2D-RS) 的开发，2. 玻璃化转变附近均聚物熔体的取向动力学，3. 相容聚合物共混物的动力学，以及 4. 流动聚合物溶液中的诱导迁移。 %%% 这项工作提供了分子水平基础和流变光学技术，以了解聚合物材料在流动、加工、成型和固化过程中的流动现象和动力学。 ***