Polymerizing Liquids: Structure, Thermodynamics, Kinetics, and Dynamics

桑德拉·格里尔博士得到了理论研究基金会的资助。 和计算化学项目继续她的研究 包括结构，热力学，动力学和动力学， 进行平衡聚合的有机分子。 在 平衡聚合时，单体开始聚合， 通过聚合降低温度， 温度，然后随着温度的升高而增长。 进一步降低。 如果温度升高，聚合物 缩短并最终在返回时恢复为单体 通过聚合温度。 系统正在 平衡聚合被称为“活性聚合”， 聚合物”。 微观研究将采用中子散射 以及光散射来研究 溶液和聚合物分子在其中的运动。 宏观研究将包括表征 热力学性质，如密度、热容、相 图表以及输送特性，如粘度和 应力松弛 %%% 平衡聚合是合成该化合物的主要途径 具有独特材料特性的新型聚合物。 这些 系统还提供了一个很好的手段来研究 聚合物溶液的微观结构， 聚合物分子量，因为聚合物尺寸可以 通过调节温度来调节。 格里尔博士的研究 将提供重要的见解， 生命的动力学和热力学解释 聚合物体系

Dr. Sandra Greer is supported by a grant from the Theoretical and Computational Chemistry Program to continue her research involving structure, thermodynamics, kinetics and dynamics of organic molecules undergoing equilibrium polymerization. In equilibrium polymerization, the monomers begin to polymerize as the temperature is lowered through the polymerization temperature and then grow in length as the temperature is lowered further. If the temperature is raised, the polymers shorten and eventually revert to monomers on passing back through the polymerization temperature. Systems undergoing equilibrium polymerization are referred to as "living polymers". Microscopic studies will employ neutron scattering as well as light scattering to investigate the structure of solutions and the motion of polymer molecules in them. Macroscopic studies will include characterization of thermodynamic properties such as density, heat capacity, phase diagrams as well as transport properties such as viscosity and stress relaxation. %%% Equilibrium polymerization is a major avenue for the synthesis of novel polymers with unique material properties. These systems also provide a wonderful means for studying the microscopic structure of polymer solutions as a function of polymer molecular weight since the polymer size can be regulated by adjusting the temperature. Dr. Greer's research will provide significant insights into the molecular level explanation for the dynamics and thermodynamics of living polymer systems.