Rheology of Concentrated Colloidal Dispersions: Effects of Triblock and Comb-Graft Associative Polymers

摘要CTS-9812409 W.B. Russel，Princeton University该提案的目的是通过研究颗粒间力、微观结构和流变性能之间的关系，为配制具有定制流变性的浓缩分散体开发实验支持的理论基础。 实例将包括含有末端嵌段和链缔合聚合物的球体的稳定分散体。 实验结合联合收割机流变测量与动态光散射和流变光学技术。 将使用非平衡统计力学解释数据，包括聚合物文献中胶束和刷的处理。 守恒方程描述了布朗球分散体的微观结构，通过成对加性势相互作用，短程流体动力学相互作用，并受到剪切或其他外部场。 拟议的研究与材料和化学工业有关，其中成分，微观结构和流变行为之间的联系很重要。 ***

Abstract CTS-9812409 W.B. Russel, Princeton University The objective of this proposal is to develop a theoretical basis supported by experiments for the formulation of concentrated dispersions with tailored rheology by investigating the relationship among interparticle forces, microstructure and rheological properties. Examples will include stable dispersions of spheres containing end block and chain associative polymers. Experiments combine rheological measurements with dynamic light scattering and rheo-optical techniques. The data will be interpreted using non-equilibrium statistical mechanics and including the treatment of micelles and brushes form the polymer literature. A conservation equation describes the microstructure of a dispersion of Brownian spheres interacting through pairwise additive potentials, short range hydrodynamical interactions, and subjected to shear or other external fields. The proposed research has relevance to materials and chemicals industries where the connection between composition, microstructure and rheological behavior are important. ***