Smart liquid crystal elastomer fibers

Matter, Journal Year: 2025, Volume and Issue: 8(2), P. 101950 - 101950

Published: Feb. 1, 2025

---

Multi-responsive circularly polarized luminescence micro-patterns with high figure of merit towards multi-dimensional data encoding

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159821 - 159821

Published: Jan. 1, 2025

Language: Английский

---

Comprehensive Study of Actuation Mechanisms and Applications in Liquid Crystalline Polymer Networks and Elastomer from Nanometer Precision to Macroscale Functionality

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Liquid crystalline polymer networks (LCNs) and liquid elastomers (LCEs) possess unique properties that enable structural deformation in response to external stimuli such as temperature, light, electric fields. These deformations occur across a wide range of scales, from nanometers macroscopic scales. This review aims comprehensively address the actuation mechanisms observed LCN LCE-based structures various First, phenomena are explored at nanoscale investigate potential applications these nanodevices systems. Next, microscale, presenting case studies involving micro-robotics micro-actuators, analyzed. Finally, it is examined how macroscale can be utilized large systems, macro devices soft robotics. By investigating scale-dependent characteristics, this paper provides an integrated perspective on LCE research, emphasizing their transformative for next-generation applications.

Language: Английский

---

Light-Powered Self-Translation of an Asymmetric Friction Slider Using a Liquid Crystal Elastomer String Oscillator

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3520 - 3520

Published: Dec. 18, 2024

In recent years, there have been many studies focused on improving the performance of active materials; however, applying these materials to machines still presents significant challenges. this study, we introduce a light-powered self-translation system for an asymmetric friction slider using liquid crystal elastomer (LCE) string oscillator. The was composed hollow slide, two LCE fibers, and mass ball. Through evolution photothermal-induced contraction, derived governing equations system. Numerical simulations revealed distinct motion modes: static mode mode. As ball moved, fibers alternated between illuminated non-illuminated states, allowing them effectively harvest light energy compensate dissipation within Unlike traditional self-oscillating systems that oscillate around fixed position, enabled advance continuously through oscillator’s symmetric self-sustained oscillation. Furthermore, explored critical conditions necessary initiating as well key parameters influence frequency amplitude oscillator average speed slider. This system, with its simple design ease control, holds promising potential applications in various fields including soft robotics, harvesting, machinery.

Language: Английский

---

The Effects of Network Architecture on the Photomechanical Performance of Azo-Acrylate Liquid Crystal Elastomers

Crystals, Journal Year: 2024, Volume and Issue: 15(1), P. 1 - 1

Published: Dec. 24, 2024

Azo-containing liquid crystal elastomers are photomechanical materials that can be actuated via illumination. The response is a result of the photoisomerization azo moiety, which produces bulk stresses in material. These arise two distinct and competing mechanisms: order parameter change induced stress direct contractile stress. We describe thermomechanical experiments aimed at assessing relative contributions these. show details attachment dyes to network greatly influence photoresponse. discuss our results summarize findings.

Language: Английский

---