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Updated: Apr 15, 2026
12:21
Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
Published on: February 6, 2016
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Shape elasticity in colloidal bent-core liquid crystals
Nicholas W Hackney1, Joel T Clemmer1, Gary S Grest1
1Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. nwhackn@sandia.gov.
Soft Matter
|April 14, 2026
Summary
Curved colloidal liquid crystals form unique ordered states due to their shape. Particle flexibility influences phase transitions, weakening the transition between isotropic and nematic twist-bend phases.
Area of Science:
- Soft Matter Physics
- Materials Science
- Liquid Crystals
Background:
- Colloidal bent core liquid crystals exhibit unique ordered states.
- Particle shape, specifically curvature, influences director field formation.
- Geometric frustration arises as constant bend states cannot fill space uniformly.
Purpose of the Study:
- Investigate the effect of rod curvature on liquid crystalline order.
- Explore how tunable shape elasticity impacts phase behavior.
- Analyze the transition from isotropic to nematic and smectic phases.
Main Methods:
- Molecular dynamics simulations.
- Utilized a bonded particle model for curved rods.
- Tunable shape elasticity parameter was employed.
Main Results:
- Curved rods exhibit a sequence of isotropic, nematic twist-bend, and smectic splay-bend ordering with increasing density.
- Increased rod elasticity shifts phase transition concentrations to higher densities.
- Flexibility weakens the first-order phase transition between isotropic and nematic twist-bend phases.
Conclusions:
- Rod curvature is crucial for stabilizing diverse liquid crystalline orders.
- Particle flexibility modulates phase transitions in curved colloidal systems.
- Findings agree with previous studies on rigid rods, extending to flexible systems.
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