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Shear rheology and shear‐induced textures of a thermotropic copolyesteramide

Abstract : The textures and the rheological behavior of a thermotropic copolyesteramide are characterized over five decades of shear rate. Three textures are observed, one thread‐like, one worm‐like characterized by a large density of defects and third, an ordered one characterized by a high flow orientation. The transitions from one texture to another depend on both shear rate and shear strain. Each texture corresponds to a given flow mechanism, similar to the ones found for lyotropics, and in qualitative agreement with the numerical predictions obtained from the rodlike solution model of Doi.
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Submitted on : Wednesday, March 9, 2011 - 10:28:53 AM
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T. De'Nève, Patrick Navard, M. Kleman. Shear rheology and shear‐induced textures of a thermotropic copolyesteramide. Journal of Rheology, American Institute of Physics, 1992, 37 (3), pp.Pages 515-529. ⟨10.1122/1.550457⟩. ⟨hal-00574938⟩



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