Protective Coating with Crystalline Shells to Fabricate Dual-Stimuli Responsive Actuators  

作　　者：Peixin Xu Qi Yu Yao Chen Peng Cheng Zhenjie Zhang 

机构地区：[1]State Key Laboratory of Medicinal Chemical Biology,College of Chemistry,Nankai University,Tianjin 300071 [2]Shandong Provincial Key Laboratory of Fine Chemicals,School of Chemistry and Pharmaceutical Engineering,Qilu University of Technology,Jinan 250353 [3]Key Laboratory of Advanced Energy Materials Chemistry,Ministry of Education,Nankai University,Tianjin 300071

出　　处：《CCS Chemistry》2022年第1期205-213,共9页中国化学会会刊（英文）

基　　金：The authors acknowledge the National Natural Science Foundation of China(no.21971126);111 Project(no.B12015).

摘　　要：The hybridization of mechanically responsive molecular crystals with polymers has proven to be an efficient approach to fabricate smart hybrid materials that can produce multiple motions upon external stimulus actuation.However,this fabrication approach occasionally displays limitations due to the solubility or poor dispersibility of molecular crystals in the polymer matrix solution.To address these challenges,we have created a facile and versatile strategy to use metal–organic frameworks(MOFs)as a protective coating against external perturbations while also improving the dispersibility of molecular crystals.As such,a series of hybrid smart materials with reversible photomechanical performance were successfully fabricated.Notably,the afforded smart materials can combine the photoresponsive properties of mechanically responsive molecular crystals with the vapor-responsive properties of certain polymers in one system,thereby obtaining dual-stimuli responsive actuators that can perform complicated motions(e.g.,crawling).These results pave the way for the fabrication of multistimuli responsive smart materials and broaden the applicable scope of MOFs.

关 键 词：metal-organic framework smart materials ACTUATOR COATING dual-stimuli 

分 类 号：TB31[一般工业技术—材料科学与工程]