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Observations of the break-up of liquid crystalline polymer threads imbedded in an isotropic fluid

Abstract : A droplet, a few hundreds of microns, of liquid crystalline hydroxypropylcellulose (HPC) in water is imbedded into a polydimethylsiloxane (PDMS) matrix and subjected to a shear flow. The droplet is deformed into a thread of high aspect ratio. The textures associated with the break-up of the thread once the flow is stopped are observed by optical microscopy. After stopping the flow a banded texture appears. The droplets resulting from the break-up have a bipolar texture with the two opposite poles being along the former thread direction.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00672014
Contributor : Magalie Prudon <>
Submitted on : Monday, February 20, 2012 - 1:21:10 PM
Last modification on : Thursday, September 24, 2020 - 5:22:54 PM

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Vassilios Tsakalos, Patrick Navard, Edith Peuvrel-Disdier. Observations of the break-up of liquid crystalline polymer threads imbedded in an isotropic fluid. Liquid Crystals, Taylor & Francis, 1996, 21 (5), pp.Pages 663-667. ⟨10.1080/02678299608032878⟩. ⟨hal-00672014⟩

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