In situ thermoresponsive supramolecular assembly for switchable circularly polarized luminescence

作     者：Menghan Pan Gong Zhang Haotian Ma Xiaoxiao Cheng Jieai Li Wei Zhang 

作者机构：State and Local Joint Engineering Laboratory for Novel Functional Polymeric MaterialsJiangsu Engineering Laboratory of Novel Functional Polymeric MaterialsSuzhou Key Laboratory of Macromolecular Design and Precision SynthesisCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China School of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu 241000China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2024年第67卷第7期

页      面：2362-2372页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(22301206,22301208 and 92356305) the Natural Science Foundation of Anhui Province(2308085J15) the China Postdoctoral Science Foundation(2022M722312) the Jiangsu Natural Science Foundation(BK20230505) the Jiangsu Funding Program for Excellent Postdoctoral Talent the Natural Science Foundation of Anhui Provincial Higher Education Institutions(2023AH010012) 

主　　题：circularly polarized luminescence in-situ thermoresponsive supramolecular assembly energy transfer 

摘      要：The dynamic regulation of circularly polarized luminescence(CPL)holds profound significance in various fields,such as highlevel information storage and *** we developed a chiral amphiphilic molecule,CPSB-GLU-PEG350(CGP),composed of aggregation-induced emission(AIE)chromophores(Z)-4-(1-cyano-2-phenylvinyl)benzoic acid(CPSB),a chiral linker Glutamic acid and polyethylene glycol(PEG)thermoresponsive *** the self-assembled supramolecular system formed by CGP,we have achieved in-situ temperature-responsive chiral structures,facilitating the thermal control switch of the CPL *** dynamics simulations demonstrate the distinct behaviors of AIE and PEG units during the temperature-variable assembly ***,by co-assembling achiral dye molecules with CGP,we have expanded the color range of the temperature-responsive CPL assembly system in situ and confirmed the occurrence of circularly polarizedF?rster resonance energy transfer(C-FRET)phenomenon in this process,which successfully enriched the strategies for in-situ CPL control in aqueous *** addition,the contactless radiative energy transfer of CPL can also be realized in this system,exhibiting more flexible temperature regulation of the CPL *** study provides a convenient and universal strategy for the construction of dynamically smart chiroptical materials.