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Time-resolved in situ X-ray scattering studies of aqueous hydroxypropylcellulose solutions

Abstract : The evolution of the global orientation parameter for a series of aqueous hydroxypropylcellulose solutions both during and following the cessation of a steady-state shear Bow is reported. Time-resolved orientation measurements were made in situ through a novel X-ray rheometer coupled with a two-dimensional electronic X-ray camera, and using an intense X-ray source at the LURE synchrotron. After the cessation of flow, the global orientation decreases from the steady state orientation level to zero following shear flow at a low shear rate or to a small but finite value after flow at a high shear rate. The decrease of orientation with time shows different behaviour, dependent upon the previously applied shear rate.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00672018
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Submitted on : Monday, February 20, 2012 - 1:29:04 PM
Last modification on : Wednesday, October 14, 2020 - 3:49:44 AM

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P.A. Keates, G.R. Mitchell, Edith Peuvrel-Disdier, Patrick Navard. Time-resolved in situ X-ray scattering studies of aqueous hydroxypropylcellulose solutions. Polymer, Elsevier, 1996, 37 (6), pp.Pages 893-901. ⟨10.1016/0032-3861(96)87271-5⟩. ⟨hal-00672018⟩

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