Photochemistry of Dendritic Polymer Structure and Dynamics

Hanson树枝状聚合物（树枝状聚合物）是一类引人注目的具有高度支化结构的新型聚合物。 本研究涉及树枝状大分子的合成和表征与光谱探针共价内置的结构。 光谱研究将提供深入了解探针的微环境在dendramers内的战略位置的极性，在溶液中的聚合物的运动，在不同的距离从分子核心的分支的流动性，小分子的访问到dendramers的内部，和有效的半径的树枝状分子。 实验将测试现有的理论树枝状结构，并将允许制定更准确的模型来预测结构和动力学。 这样的理解应该会增强实际应用的前景 树枝状聚合物。

9412292 Hanson Dendritic polymers (dendrimers) are a remarkable new class of polymers with highly branched structure. This research deals with the synthesis and characterization of dendrimers with spectroscopic probes covalently built in to the structure. The spectroscopic studies will provide insight into the polarity of the probe's microenvironment at strategic locations within the dendramers, the motion of the polymers in solution, the mobility of branches at various distances from the molecular core, the acces of small molecules to the dendrimers' interior, and the effective radius of the dendritic molecules. The experiments will test the existing theories of dendrimer structure and will allow formulation of more accurate models for predicting both structure and dynamics. Such an understanding should enhance the prospects for pratical applications of dendritic polymers.