Thermochromic Smart Windows with Ultra-High Solar Modulation and Ultra-Fast Responsive Speed Based on Solid–Liquid Switchable Hydrogels  

作　　者：Guangjun Zhu Gang Xu Yu Zhang Guo Lu Xuan Cai Wei Zhang Wei She Changwen Miao 

机构地区：[1]State Key Laboratory of High Performance Civil Engineering Materials,Southeast University,Nanjing 211189,China [2]School of Materials Science and Engineering,Southeast University,Nanjing 211189,China [3]Jiangsu Key Laboratory of Advanced Metallic Materials,Southeast University,Nanjing 211189,China [4]School of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,China [5]Wuhan National Laboratory for Optoelectronics,School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Research》2024年第4期2-13,共12页研究(英文)

基　　金：supported by the National Key Research and Development Program of China(no.2023YFC3009502);the National Natural Science Foundation of China(nos.51890904,52022022,and 52371134);the Natural Science Foundation of Jiangsu Province(no.BK20231432);the Aeronautical Science Foundation of China(no.2023Z015069001);the Fundamental Research Funds for the Central Universities(no.2242023K40027).

摘　　要：Thermo-responsive hydrogels can dynamically modulate incident light,providing a broad prospect for development of smart windows,which are of pivotal importance for energy conservation in buildings.However,these hydrogels normally exhibit slow response speed and tend to contract over extended phase transition,compromising structural integrity of smart windows.In this study,a solid–liquid switchable thermochromic hydrogel,denoted as SL-PNIPAm,was synthesized by cross-linking PNIPAm with AMEO through dynamic imine bonds.Due to its distinctive solid–liquid transformation characteristics,SL-PNIPAm demonstrates rapid response time(within 5 s)and retains structural integrity without undergoing shrinkage during heating/cooling and freezing/thawing cycles.

关 键 词：BONDS LINKING FREEZING 

分 类 号：O63[理学—高分子化学]