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

Keates, P.A., Mitchell, G.R., Peuvrel-Disdier, E. and Navard, P. (1996) Time-resolved in situ X-ray scattering studies of aqueous hydroxypropylcellulose solutions. Polymer, 37 (6). pp. 893-901. ISSN 0032-3861

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To link to this item DOI: 10.1016/0032-3861(96)87271-5


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 flow 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 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.

Item Type:Article
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Electron Microscopy Laboratory (CAF)
ID Code:26810

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