Nonquiescent relaxation in entangled polymer liquids after step shear |
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| Authors: | Wang Shi-Qing Ravindranath Sham Boukany Pouyan Olechnowicz Michael Quirk Roderic P Halasa Adel Mays Jimmy |
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| Affiliation: | Department of Polymer Science and Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325, USA. swang@uakron.edu |
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| Abstract: | Large step shear experiments revealed through particle tracking velocimetry that entangled polymeric liquids display either internal macroscopic movements upon shear cessation or rupturelike behavior during shear. Visible inhomogeneous motions were detected in five samples with the number of entanglements per chain ranging from 20 to 130 at amplitudes of step strain as low as 135%. |
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