The effect of spherical additives on a liquid crystal colloid

ANTYPOV, D. and CLEAVER, D. J. (2004). The effect of spherical additives on a liquid crystal colloid. Journal of Physics - Condensed Matter, 16 (19), S1887-S1900.

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We present a computer simulation study of a colloidal particle immersed in a solvent comprising liquid crystalline rod-shaped particles and a 10% number concentration of small spherical additives. The presence of the colloidal particle (and its periodic images) is found to induce qualitative changes in the phase behaviour of the rod-sphere mixture. When the colloidal particle favours radial anchoring, it is found that the small spheres spontaneously aggregate to form a droplet which resides in the equatorial plane of the colloidal particle. When the colloidal particle favours tangential anchoring, however, the small spheres aggregate to form droplets at each of the boojums seen experimentally. These findings confirm expectations that small additives to liquid crystalline systems should preferentially reside in disordered regions, whilst also reflecting the competing influence of surface tension effects.

Item Type: Article
Additional Information: Workshop on Liquid Crystal Colloid Dispersions AUG, 2003 Bled, SLOVENIA Sp. Iss. SI
Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Modelling Research Centre > Materials Modelling group
Identification Number:
Page Range: S1887-S1900
Depositing User: Hilary Ridgway
Date Deposited: 12 Apr 2010 09:31
Last Modified: 18 Mar 2021 09:45

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