TY - JOUR
T1 - Liquid crystalline elastomer actuators with dynamic covalent bonding
T2 - Synthesis, alignment, reprogrammability, and self-healing
AU - Das, Gautam
AU - Park, Soo Young
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/6
Y1 - 2023/6
N2 - Liquid crystalline elastomers (LCEs) have demonstrated tremendous potential in applications such as soft robotics, biomedical materials, electronics, sensors, and biomimetic systems. The physical properties of LCEs are controlled by the degree of crosslinking, nature of the mesogens, and mesogen orientation in the LCE network structure. A wide range of dynamic covalent bonds (DCBs) capable of dynamic bond exchange reactions (DBERs) have been introduced into LCE structures to obtain intelligent materials in recent decades. In this review article, we discuss the molecular constitution, macrostructure, morphing mechanism, recent advances in LCEs with dynamic covalent bonds, the influence of DCBs on self-healing, reprogramming and reprocessing properties of LCE actuators, and challenges and opportunities in incorporating dynamic chemistry in the field of LCE actuators.
AB - Liquid crystalline elastomers (LCEs) have demonstrated tremendous potential in applications such as soft robotics, biomedical materials, electronics, sensors, and biomimetic systems. The physical properties of LCEs are controlled by the degree of crosslinking, nature of the mesogens, and mesogen orientation in the LCE network structure. A wide range of dynamic covalent bonds (DCBs) capable of dynamic bond exchange reactions (DBERs) have been introduced into LCE structures to obtain intelligent materials in recent decades. In this review article, we discuss the molecular constitution, macrostructure, morphing mechanism, recent advances in LCEs with dynamic covalent bonds, the influence of DCBs on self-healing, reprogramming and reprocessing properties of LCE actuators, and challenges and opportunities in incorporating dynamic chemistry in the field of LCE actuators.
KW - Actuators
KW - Dynamic covalent bonding
KW - Liquid crystalline elastomer
KW - Reprogrammability
KW - Self-healing
UR - https://www.scopus.com/pages/publications/85150181583
U2 - 10.1016/j.cossms.2023.101076
DO - 10.1016/j.cossms.2023.101076
M3 - Review article
AN - SCOPUS:85150181583
SN - 1359-0286
VL - 27
JO - Current Opinion in Solid State and Materials Science
JF - Current Opinion in Solid State and Materials Science
IS - 3
M1 - 101076
ER -