Results 51 to 60 of about 277,839 (301)

Ferronematic Liquid Crystal Polymers and Elastomers

open access: yesMATERIAIS 2022, 2022
Liquid crystal polymers, through covalent bonding, combine the spontaneous long range orientational order of the liquid crystal state with the entropically driven random coil configurations of the skeletal polymer chains in a single material [1]. [...]
Reeves, Sarah J.   +2 more
openaire   +2 more sources

Four-Dimensional Printing of Temperature-Responsive Liquid Crystal Elastomers with Programmable Shape-Changing Behavior

open access: yesBiomimetics, 2023
Liquid crystal elastomers (LCEs) are polymer networks that exhibit anisotropic liquid crystalline properties while maintaining the properties of elastomers, presenting reversible high-speed and large-scale actuation in response to external stimuli ...
Shuyi Li   +4 more
doaj   +1 more source

Modeling and simulation of liquid-crystal elastomers

open access: yesPhysical Review E, 2011
We consider a continuum model describing the dynamic behavior of nematic liquid crystal elastomers (LCEs) and implement a numerical scheme to solve the governing equations. In the model, the Helmholtz free energy and Rayleigh dissipation are used, within a Lagrangian framework, to obtain the equations of motion. The free energy consists of both elastic
Zhu, Wei   +2 more
openaire   +4 more sources

Layered liquid crystal elastomer actuators [PDF]

open access: yesNature Communications, 2018
AbstractLiquid crystalline elastomers (LCEs) are soft, anisotropic materials that exhibit large shape transformations when subjected to various stimuli. Here we demonstrate a facile approach to enhance the out-of-plane work capacity of these materials by an order of magnitude, to nearly 20 J/kg.
Tyler Guin   +6 more
openaire   +3 more sources

Synthesizing Liquid Crystal Elastomers [PDF]

open access: yes, 2023
Liquid Crystal Elastomers (LCEs) are polymers composed of a soft, flexible material capable of changing shape. With demand for artificial organs increasing, LCEs are a promising candidate for creating functional and viable artificial organs.Honors ...
Estrada, Rea Rose   +2 more
core  

Morphing of liquid crystal surfaces by emergent collectivity

open access: yesNature Communications, 2019
Liquid crystal networks can morph their shape in response to electrical stimulus. Here the authors provide a detailed description of their deformation mechanism and introduce a method to observe the dynamic surface of liquid crystal elastomers.
Hanne M. van der Kooij   +5 more
doaj   +1 more source

Internal constraints and arrested relaxation in main-chain nematic elastomers

open access: yesNature Communications, 2021
Nematic liquid crystal elastomers (N-LCE) have a slow relaxation, which can prevent their shape recovery. Here, the authors examine mechanical hysteresis in a series of main-chain N-LCE to understand how the inherent nematic order retards and arrests the
Takuya Ohzono   +4 more
doaj   +1 more source

Liquid crystal elastomers [PDF]

open access: yes, 2007
Liquid crystal elastomers are an entirely new physical system, occupying a transitional zone between liquids and solids. This book is the foundation treatise in this emerging field of combined chemistry, physics, mathematics and engineering.
Warner, M., Terentjev, E. M.
core   +2 more sources

Lyotropic liquid crystal elastomers for drug delivery [PDF]

open access: yes, 2023
Silicone elastomers like polydimethylsiloxane (PDMS) possess a combination of attractive material and biologicalproperties motivating their widespread use in biomedical applications.
Stepulane, Annija,   +9 more
core   +1 more source

Artificial Phototropic Systems for Enhanced Light Harvesting Based on a Liquid Crystal Elastomer

open access: yesAdvanced Intelligent Systems, 2021
Oblique‐incidence‐induced energy‐density loss (OEL) is a universal problem which affects nearly all processes involving electromagnetic waves, especially sunlight harvesting.
Yichen Yan   +6 more
doaj   +1 more source

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