Volume 70, Number 5, June 2005
|Page(s)||621 - 627|
|Section||Condensed matter: structural, mechanical and thermal properties|
|Published online||04 May 2005|
Colloidal crystal formation via polymer–liquid-crystal demixing
Department of Chemical Engineering, McGill University 3610 University St., Montreal, QC H3A 2B2, Canada
Corresponding author: email@example.com
Accepted: 18 April 2005
Simulations of the formation and structure of colloidal crystal ordering that emerge from phase-separation–phase-ordering–texture processes driven by thermal quenches of an isotropic phase of polymer–rigid-rod mesogens are presented and characterized using spinodal-decomposition measures and liquid-crystal defect physics. The positional order in the crystalline emulsion emerges from orientation-driven spinodal decomposition, and the polymer droplet lattice is pinned by a random network of disclination lines embedded in the nematic-liquid-crystalline matrix. The nematic texture is controlled by the coupling between diffusion and nematic ordering.
PACS: 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals / 77.84.Nh – Liquids, emulsions, and suspensions; liquid crystals / 81.30.-t – Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
© EDP Sciences, 2005
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