U.S.-Germany Cooperative Research: Short-Time Dynamics of Miscible Polymer Blends

该提案（“可混溶聚合物混合物的短期动力学”）的奖项支持PI、副PI Robert Colby和宾夕法尼亚州立大学的研究生、德国J³lich国家研究中心固态研究所的Dieter Richter和希腊伊拉克利昂hellas研究与技术基金会电子结构和激光研究所的George Fytas之间的合作。研究将集中在聚合物共混物的长时间动力学，它控制整个链的运动，影响它们的粘度和扩散系数。预测这些特征的能力对聚合物加工至关重要，也是社区的重要兴趣。为了实现所提出的研究目标，有必要开展合作，以测量比整个聚合物链更小的长度尺度的运动。在准弹性中子散射技术方面处于世界领先地位的德国小组和使用互补诊断工具的希腊小组都为合作带来了独特的设施和专业知识。

9800092KumarThe award on this proposal ("Short-Time Dynamics of Miscible Polymer Blends") supports a collaboration between the PI, co-PI Robert Colby, and graduate students from Penn State, and Dieter Richter of the Institute for Solid State Research at the National Research Center in J³lich, Germany, and George Fytas of the Institute of Electronic Structure and Laser at the Foundation for Research and Technology-Hellas in Heraklion, Greece. The research will focus on the long-time dynamics of polymer blends which control the motion of entire chains effecting their viscosity and diffusion coefficients. The ability to predict these features is critical to polymer processing, and is of significant interest to the community. In order to achieve the goals of the proposed research it is necessary to develop collaborations to measure motions at length scales smaller than the whole polymer chain. Both the German group, which is a world leader in quasielastic neutron scattering techniques, and the Greek group, which uses a complementary diagnostic tool, bring unique facilities and expertise to the collaboration.