Construction of Dielectric and Mechanical Response Theoriesfor Polymer Chains under Shear Flow

在这项工作中，建立了聚合物的介电响应和力学响应理论，以理解在流动条件下实验观察到的聚合物体系的响应行为。我们建立了聚异戊二烯在剪切作用下的介电和力学响应的各向异性迁移率模型(流变介电函数和取向相关的存储和损耗模数)，该模型将响应行为与高分子链的分子运动联系起来。我们还发现缔合聚合物溶液的剪切增稠行为也可以用各向异性运动来解释。

In this work, theories of dielectric and mechanical responses of polymers were constructed to understand experimentally observed response behavior of polymeric systems under flow. We constructed the anisotropic mobility model for dielectric and mechanical responses of polyisoprene under shear (the rheo-dielectric function and the orientation-dependent storage and loss moduli), which relates the response behavior to the molecular motion of polymer chains. We also showed that the shear-thickening behavior of associative polymer solutions can be also explained by the anisotropic motion.