Intermolecular Structure and Dynamics in Multicomponent Glasses

这一建议需要多组分聚合物玻璃的跨学科研究，以发展宏观材料性质的分子水平的理解。这是一个涉及化学、物理和工程领域的产学研合作项目。这些项目包括从材料的合成和制备到工程特性的确定，再到先进的光谱表征，并在理论和模型的辅助下进行全面解释。所选择的研究系统在技术上是相关的，并且适合核磁共振研究，例如在稀释剂存在下的聚碳酸酯和聚（苯基氧化物）。核磁共振技术的持续进步使人们对分子水平运动和结构相互作用有了新的认识，这些运动和结构相互作用与这些多组分系统的材料特性有关。将寻求解释框架，将核磁共振数据与眼镜中的运动和结构联系起来。第二层解释需要将运动和结构与材料的宏观特征联系起来。在这两种情况下，分子建模的结果将有助于产生理解，并指导实验探究的性质。

This proposal entails the interdisciplinary study of multicomponent polymeric glasses to develop a molecular level understanding of macroscopic materials properties. It is an industry-university collaboration involving the fields of chemistry, physics, and engineering. The projects include aspects which range from the synthesis and preparation of materials through a determination of engineering properties to advanced spectroscopic characterization with an overall interpretation assisted by theory and modeling. Systems selected for study are technologically relevant and suitable for study by nuclear magnetic resonance, such as polycarbonates and poly(phenylene oxides), in the presence of diluents. Continued advances in the nuclear magnetic resonance technique allow for new insights into molecular-level motion and structural interactions which bear upon the materials properties of these multicomponent systems. Interpretational frameworks will be sought to relate the nuclear magnetic resonance data to motion and structure in the glasses. A second tier of interpretation is required to relate motion and structure to the macroscopic characteristics of the materials. In both cases, molecular modeling results will assist in the generation of an understanding and also direct the nature of the experimental inquiry.