4.7 Article

Effect of Spacer and Mesogen in Side-Chain Liquid Crystal Elastomer Structure on Reversible Actuation Behavior

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

A Facile Strategy for the Development of Recyclable Multifunctional Liquid Crystal Polymers via Post-Polymerization Modification and Ring-Opening Metathesis Polymerization

Xin Zhao et al.

Summary: This study presents a synthetic approach towards multifunctional liquid crystal polymers (LCPs) by combining ring-opening metathesis polymerization (ROMP) with post-polymerization modification (PPM). The obtained photo- and humidity-responsive LCP exhibits complex deformation behaviors and possesses excellent processability and recyclability, showing great potential for the fabrication of programmable shape actuators.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Article Multidisciplinary Sciences

Light-driven dandelion-inspired microfliers

Yuanhao Chen et al.

Summary: Inspired by the flight mechanism of dandelion seeds, researchers have developed light-driven dandelion-inspired microfliers that can achieve mid-air flight above a light source. These microfliers, based on ultralight and super-sensitive tubular-shaped soft actuators, can control their falling velocity by adjusting the deformation of the pappus under different light irradiations. The resulting microfliers exhibit light-driven upward flight accompanied by autorotating motion, and the rotation mode can be customized in either a clockwise or counterclockwise direction.

NATURE COMMUNICATIONS (2023)

Article Chemistry, Multidisciplinary

Precisely Controllable Artificial Muscle with Continuous Morphing based on Breathing of Supramolecular Columns

Zifan Yang et al.

Summary: Researchers have developed a new type of photoresponsive liquid crystal polymer that can continuously change its shape due to a unique breathing columnar phase. The cooperative movements of side-chains and backbones in the polymer generate significant negative thermal expansion, enabling temperature-controllable muscle-like elongation/contraction. The material also exhibits phototunable bending and high-contrast fluorescence change, making it suitable for constructing advanced artificial muscles or intelligent soft robotics.

ADVANCED MATERIALS (2023)

Article Multidisciplinary Sciences

Locally controllable magnetic soft actuators with reprogrammable contraction-derived motions

Yahe Wu et al.

Summary: This study explores the potential of magnetothermal responsiveness and covalent adaptable networks in liquid crystalline elastomers to realize versatile morphing modes and local magnetic control. Various magneto-actuated contraction-derived motions can be achieved, reprogrammed, and seamlessly assembled. The systems also exhibit favorable performances including stepwise magnetic controllability, multiresponsiveness, self-healing, and remolding ability.

SCIENCE ADVANCES (2022)

Article Chemistry, Multidisciplinary

4D-Printing of Photoswitchable Actuators

Xili Lu et al.

Summary: This study introduces a new class of smart materials, shape-switching liquid crystalline elastomers, which can achieve long-lasting deformation and recovery through light and heat. The research team also successfully printed a Braille-like actuator that can display different letters.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Humidity-Responsive Liquid Crystalline Network Actuator Showing Synergistic Fluorescence Color Change Enabled by Aggregation Induced Emission Luminogen

Ruochen Lan et al.

Summary: By preparing a bilayer film composed of liquid crystalline networks (LCN) film and hydrochromic aggregation-induced-emission molecule-doped hydrophilic layer, deformation and fluorescence color change under different relative humidity are achieved. The influence of hydrophilic matrix content on the film properties is investigated. Different modes of deformation are enabled by the mechanical anisotropy of the uniform-aligned LCN film.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Polymer Science

Chiral Liquid Crystalline Elastomer for Twisting Motion without Preset Alignment of Mesogens

Lu Yin et al.

Summary: A new type of chiral liquid crystalline elastomer (CLCE) actuator is demonstrated in this study, which can twist without any preset alignment. The direction and degree of twisting are influenced by various factors, including the molecular chirality of the chiral dopant, the aspect ratio and thickness of the CLCE strip, and the chiral dopant content.

ACS MACRO LETTERS (2021)

Article Chemistry, Multidisciplinary

Liquid Crystal Elastomers with Enhanced Directional Actuation to Electric Fields

Hayden E. Fowler et al.

Summary: The integration of soft, stimuli-responsive materials in robotic systems allows for delicate object manipulation. Electrical control of mechanical response in liquid crystal elastomers (LCEs) results in rapid deformation with little hysteresis. The directional expansion and shape transformation capabilities of LCE actuators demonstrate promising applications in robotics.

ADVANCED MATERIALS (2021)

Article Chemistry, Physical

Dynamic Liquid Crystalline Networks for Twisted Fiber and Spring Actuators Capable of Fast Light-Driven Movement with Enhanced Environment Adaptability

Zhi-Chao Jiang et al.

Summary: By utilizing carbon nanotube-loaded liquid crystalline Diels-Alder networks for twisted fiber and spring actuators, high-performance, environment-adaptable rolling motion has been achieved, including ultrafast speed, multi-terrain locomotion, movement under different lighting conditions, and squeezing through narrow openings through reversible compression and extension.

CHEMISTRY OF MATERIALS (2021)

Article Chemistry, Multidisciplinary

Stimulus-driven liquid metal and liquid crystal network actuators for programmable soft robotics

Pengfei Lv et al.

Summary: A general strategy to integrate electrically conductive liquid metals and shape-morphing liquid crystal networks towards multifunctional and programmable soft robotics is proposed in this study.

MATERIALS HORIZONS (2021)

Article Chemistry, Multidisciplinary

A Novel Side-Chain Liquid Crystal Elastomer Exhibiting Anomalous Reversible Shape Change

Lu Yin et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Automation & Control Systems

Liquid Crystal Polymer-Based Soft Robots

Yao-Yu Xiao et al.

ADVANCED INTELLIGENT SYSTEMS (2020)

Article Chemistry, Multidisciplinary

Biomimetic Locomotion of Electrically Powered Janus Soft Robots Using a Liquid Crystal Polymer

Yao-Yu Xiao et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Multidisciplinary

Interpenetrating Liquid-Crystal Polyurethane/Polyacrylate Elastomer with Ultrastrong Mechanical Property

Hai-Feng Lu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Multidisciplinary Sciences

Light-fuelled freestyle self-oscillators

Hao Zeng et al.

NATURE COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

An Artificial Nocturnal Flower via Humidity-Gated Photoactuation in Liquid Crystal Networks

Owies M. Wani et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Multidisciplinary

A Light-Activated Polymer Composite Enables On-Demand Photocontrolled Motion: Transportation at the Liquid/Air Interface

Shudeng Ma et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Multidisciplinary

A Multifunctional Dye-doped Liquid Crystal Polymer Actuator: Light-Guided Transportation, Turning in Locomotion, and Autonomous Motion

Feijie Ge et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Article Multidisciplinary Sciences

Coincident molecular auxeticity and negative order parameter in a liquid crystal elastomer

D. Mistry et al.

NATURE COMMUNICATIONS (2018)

Review Chemistry, Multidisciplinary

Soft Actuators for Small-Scale Robotics

Lindsey Hines et al.

ADVANCED MATERIALS (2017)

Review Chemistry, Physical

Programmable and adaptive mechanics with liquid crystal polymer networks and elastomers

Timothy J. White et al.

NATURE MATERIALS (2015)

Article Multidisciplinary Sciences

A 3D-printed, functionally graded soft robot powered by combustion

Nicholas W. Bartlett et al.

SCIENCE (2015)

Article Physics, Condensed Matter

Toward molecular auxetics: Main chain liquid crystalline polymers consisting of laterally attached para-quaterphenyls

CB He et al.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS (2005)