Rheology of Rod‐like Polymers in the Liquid Crystalline State

摘要: The literature on the rheology of liquid crystals formed from rod‐like molecules is reviewed in this article. After a brief introduction to general and their particular, types polymers that form crystal phases conditions for formation are summarized. framework discussion polymeric based three‐region flow curve proposed by Onogi Asada. plateau viscosity region one best understood, with agreement among various studies theory. data onset shear thinning at high rates other viscoelastic phenomena not consistent different investigators. Many have an initial appear yield stress. Rheo‐optical suggest result domain texture which commonly exists systems. In many cases, behavior confounded chemical effects such as aggregation or crystallization, give rise sample history probably account some discrepancies literature.