Rheological and Rheo-Optical Investigations of Fast Flow Behavior of Entangled Polymeric Fluids

这一为期一年的拨款的目的是允许PI和他的研究小组继续他们的工作：i)纠缠聚合物在快速稳定的薄壁中的本构行为和i)在有和没有壁滑的情况下聚合物吸附和解吸的原位荧光研究。第二个目的是允许PI吸收并能够响应最初提出的更大规模的拟议研究计划而产生的批评。预计与(I)项相关的工作将使研究人员更接近于理解在剪切速率增加的情况下应力达到平台的现象。同样，第(2)项的目标可以概括为提供对表面条件对聚合物/壁界面处聚合物流动行为的影响的更好的理解。这项研究将包括相关分子过程的影响。

The purpose of this one-year grant is to permit the PI and his research group to continue their work on:i) Constitutive behavior of entangled polymers in fast steady sheer andii) In-situ fluorescence study of polymer adsorption and desorption with and without wall slip.A second purpose is to permit the PI to absorb and to be able to respond to the criticisms that were generated in response to the larger scale proposed research plan that was initially proposed.It is expected that the work associated with item (i) will move the investigator closer to an understanding of the phenomenon wherein the stress reaches a plateau in the presence of an increasing shear rate. Similarly, the item (ii) objectives can be summarized as providing an enhanced understanding of the effect of surface conditions on the polymer flow behavior at the polymer/wall interface. This study will include the effects of the associated molecular processes.