Near-infrared chromophore functionalized soft actuator with ultrafast photoresponsive speed and superior mechanical property

L Liu, MH Liu, LL Deng, BP Lin… - Journal of the American …, 2017 - ACS Publications
L Liu, MH Liu, LL Deng, BP Lin, H Yang
Journal of the American Chemical Society, 2017ACS Publications
In this Communication, we develop a two-step acyclic diene metathesis in situ
polymerization/cross-linking method to synthesize uniaxially aligned main-chain liquid
crystal elastomers with chemically bonded near-infrared absorbing four-alkenyl-tailed
croconaine-core cross-linkers. Because of the extraordinary photothermal conversion
property, such a soft actuator material can raise its local temperature from 18 to 260° C in 8
s, and lift up burdens 5600 times heavier than its own weight, under 808 nm near-infrared …
In this Communication, we develop a two-step acyclic diene metathesis in situ polymerization/cross-linking method to synthesize uniaxially aligned main-chain liquid crystal elastomers with chemically bonded near-infrared absorbing four-alkenyl-tailed croconaine-core cross-linkers. Because of the extraordinary photothermal conversion property, such a soft actuator material can raise its local temperature from 18 to 260 °C in 8 s, and lift up burdens 5600 times heavier than its own weight, under 808 nm near-infrared irradiation.
ACS Publications