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Small-angle scattering of polarized light .V. Liquid crystalline droplets in an isotropic polymer

Abstract : The light scattering properties of spherical droplets of a nematic low molar mass liquid crystal dispersed either in a polymer matrix or in water have been investigated. The size of the droplets varied from 0.5 mu m to 100 mu m. Only a radial arrangement of the director in spherical droplets was considered. Up to ten orders HV scattering patterns were experimentally measured. Calculations have been conducted using the anomalous diffraction and Rayleigh-Gans-Debye theories. Particles larger then 2 mu m show an extremely good agreement with the anomalous diffraction theory. Particles smaller than 2 mu m show no agreement with either theory. This may be due to a more complex director arrangement than the radial distribution assumed here.
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Submitted on : Monday, February 20, 2012 - 1:33:52 PM
Last modification on : Wednesday, October 14, 2020 - 4:02:38 AM

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Olga Biganska, Tatiana Budtova, Edith Peuvrel-Disdier, Patrick Navard. Small-angle scattering of polarized light .V. Liquid crystalline droplets in an isotropic polymer. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Taylor and Francis, 1995, pp.Pages 167-175. ⟨10.1080/10587259508033463⟩. ⟨hal-00672021⟩

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