Photophysical Investigation of Polymer Structure in Multi- component Polymer Systems: Blends, Complexes and Micelles

多组分聚合物体系中聚合物结构的光物理研究：共混物、复合物和胶束

• 批准号: 8904323
• 负责人: Curtis Frank
• 金额: $ 65.07万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8904323&HistoricalAwards=false
• 关键词: Photophysical; Investigation; Polymer; Structure; Multi

Photophysical techniques, including photostationary and transient fluorescence and transient fluorescence depolarization, are the new tools to study polymer chain structure in three classes of multicomponent polymer systems. Polymer blends containing a crystallizable component will be examined with particular attention to the influence of constraints imposed by lamellar boundaries on structure in the amorphous regions. Hydrogen bonding, hydrophobic and stereotactic interactions will be characterized in complexes formed in aqueous and non-aqueous solution. Micelles formed by block copolymers in mixed selective solvents will be studied with particular attention to the structure of the core. Dyamic light scattering will be used as a complementary tool to characterize structure in both the complex and micelle studies.

光物理技术，包括光稳和瞬态 荧光和瞬态荧光去偏振，是 研究三类聚合物链结构的新工具， 多组分聚合物体系。 聚合物共混物，其包含 可结晶组分将用特定的 注意板层约束的影响 在非晶区的结构上的边界。 氢 键合，疏水和立体定向相互作用将是 其特征在于在水性和非水性中形成的络合物， 溶液 嵌段共聚物在混合选择性溶液中形成的胶束 溶剂将进行研究，特别注意 核心的结构。 动态光散射将被用作 一种互补工具，用于表征复合体和 和胶束研究。