Plasma‐Induced Polymerizations: A New Synthetic Entry in Liquid Crystal Elastomer Actuators
| Autor: | Patrick Keller, Mengxue Zhang, Min-Hui Li, Cédric Guyon, Michael Tatoulian, Bin Ni |
|---|---|
| Přispěvatelé: | Institut de Recherche de Chimie Paris (IRCP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ministère de la Culture (MC), Laboratoire Physico-Chimie Curie [Institut Curie] (PCC), Institut Curie [Paris]-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology Bending 010402 general chemistry 01 natural sciences Polymerization chemistry.chemical_compound Plasma Liquid crystal Materials Chemistry Composite material Organic Chemistry Robotics 021001 nanoscience & nanotechnology Soft robots Plasma polymerization Liquid Crystals 0104 chemical sciences Liquid crystal elastomer Magnetic Fields Monomer Photopolymer Magnetic field [CHIM.POLY]Chemical Sciences/Polymers Elastomers chemistry Thermomechanical Deformation (engineering) 0210 nano-technology |
| Zdroj: | Macromolecular Rapid Communications Macromolecular Rapid Communications, Wiley-VCH Verlag, 2020, 41 (19), pp.2000385. ⟨10.1002/marc.202000385⟩ |
| ISSN: | 1022-1336 1521-3927 |
| DOI: | 10.1002/marc.202000385⟩ |
| Popis: | International audience; The research on soft actuators including liquid crystal elastomers (LCEs) becomes more and more appealing at a time when the expansion of artificial systems is blooming. Among the various LCE actuators, the bending deformation is often in the origin of many actuation modes. Here, a new strategy with plasma technology is developed to prepare single‐layer main‐chain LCEs with thermally actuated bending and contraction deformations. Two distinct reactions, plasma polymerization and plasma‐induced photopolymerization, are used to polymerize in one step the nematic monomer mixture aligned by magnetic field. The plasma polymerization forms cross‐linked but disoriented structures at the surface of the LCE film, while the plasma‐induced photopolymerization produces aligned LCE structure in the bulk. The actuation behaviors (bending and/or contraction) of LCE films can be adjusted by plasma power, reaction time, and sample thickness. Soft robots like crawling walker and flower mimic are built by LCE films with bending actuation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text