Near-Infrared Chromophore Functionalized Soft Actuator with Ultrafast Photoresponsive Speed and Superior Mechanical Property
Near-Infrared Chromophore Functionalized Soft Actuator with Ultrafast Photoresponsive Speed and Superior Mechanical Property
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具有超快光响应速度和优越机械性能的近红外发色团功能化软执行器
DOI：
10.1021/jacs.7b06410
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发表时间：
2017-08-23
影响因子：
15
通讯作者：
Yang, Hong
中科院分区：
文献类型：
--
作者：
Liu, Li;Liu, Mei-Hua;Yang, Hong
在本次通讯中，我们开发了一种两步无环二烯复分解原位聚合/交联方法，合成了具有化学键合的近红外吸收四烯基尾克可卡因核交联剂的单轴取向主链液晶弹性体：由于非凡的光热转换性能，这种软致动器材料可以在8秒内将其局部温度从18℃升高到260℃，并举升5600次在808 nm近红外照射下，比自身重量重。
In this Communication, we develop a two-step acyclic diene metathesis in situ polymerization/crosslinking 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 degrees C in 8 s, and lift up burdens 5600 times heavier than its own weight, under 808 nm near-infrared irradiation.