Spectroscopy of Complex Fluids in Flow

复杂流体是由溶液中的聚合物和纳米颗粒组成的。在流动过程中，这些流体可能经历剧烈的分子和纳米颗粒取向和空间排序，从而产生一系列令人着迷的流变行为。该项目将使用最先进的荧光光谱技术，该技术能够解决单个分子的方向，并结合新颖的流变光学方法来表征这些流体中流动诱导的有序。流动诱导的取向、空间分布和纳米粒子/大分子相互作用将被量化。在描述复杂流体流动方面的理论缺陷将得到修正。获得的实验见解将用于生产新的分子有序材料。

Complex fluids are composed of polymers and nano-particles in solution. Under flow these fluids may undergo dramatic molecular and nano-particle orientational and spatial ordering that give rise to a fascinating range of rheological behaviour. This project will use state of the art fluorescence spectroscopy which is able to resolve the orientation of single molecules combined with novel rheo-optic methods to characterise flow induced ordering in these fluids. The flow induced orientation, spatial distribution and nano-particle/macromolecule interactions will be quantified. Theoretical deficiencies in describing complex fluid flow will be reconciled. The experimental insight gained will be exploited to produce novel molecularly ordered materials.