Single-material Solvent-sensitive Fluorescent Actuator from Carbon Dots Inverse Opals Based on Gradient Dewetting  

作　　者：Jun-chao Liu Yuan-yuan Shang Da-jie Zhang Zheng Xie 胡瑞祥 王京霞 

机构地区：[1]College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China [2]Key Laboratory of Bio-inspired Materials and Interface Sciences, Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100190, China [3]Laboratory of Bioinspired materials, School of Future Technology, University of Chinese Academy of Sciences

出　　处：《Chinese Journal of Polymer Science》2017年第9期1043-1043,1044-1050,共8页高分子科学（英文版）

基　　金：the Ministry of Science and Technology of China(Nos.2016YFA0200803 and2016YFB0402004);the National Natural Science Foundation of China(Nos.51673207 and 51373183);Scientific Research Fund of Hunan Provincial Science and Technology Department(No.09236)

摘　　要：A novel solvent-sensitive fluorescent actuator with reversibility has been obtained from carbon dots （CDs） inverse opals, which is prepared via infiltrating CDs solution into the interstice of colloidal crystal template, thermal polymerization of CDs materials and removing the colloidal template. The as-prepared CDs inverse opal actuator shows a bending angle of 75° in 10.2 s, bending rate of 7.35 （°）.s-1. In particular, the fluorescence intensity of the films varies during the actuating process. The actuating behavior is attributed to the inhomogeneous swelling/shrinking of the film, which originates from the gradient dewetting by solvent evaporation and hydrogen-bonding interaction between the solvent molecules and oxygen/hydrogen ions of CDs side chain. The CDs inverse opal actuator has the advantages of quick response, good repeatability and strong fluorescence, which gives an important insight into the design and manufacture of novel and advanced solvent-actuators.A novel solvent-sensitive fluorescent actuator with reversibility has been obtained from carbon dots （CDs） inverse opals, which is prepared via infiltrating CDs solution into the interstice of colloidal crystal template, thermal polymerization of CDs materials and removing the colloidal template. The as-prepared CDs inverse opal actuator shows a bending angle of 75° in 10.2 s, bending rate of 7.35 （°）.s-1. In particular, the fluorescence intensity of the films varies during the actuating process. The actuating behavior is attributed to the inhomogeneous swelling/shrinking of the film, which originates from the gradient dewetting by solvent evaporation and hydrogen-bonding interaction between the solvent molecules and oxygen/hydrogen ions of CDs side chain. The CDs inverse opal actuator has the advantages of quick response, good repeatability and strong fluorescence, which gives an important insight into the design and manufacture of novel and advanced solvent-actuators.

关 键 词：Carbon dots inverse opal FLUORESCENT Single-material Gradient dewetting Solvent-actuator 

分 类 号：TB381[一般工业技术—材料科学与工程]