文献类型：期刊文献

英文题名：Multistimuli-responsive fluorescence behaviours of aggregation-induced emission small-molecule and electrospun nanofibre films for acid-base vapour sensing

作者：Ma, Chunping He, Jiyin Wu, Yancheng Li, Junlang Chen, Jiayi Zhang, Yangfan Mo, Jinpeng Xie, Haibo Chi, Zhenguo Li, Yang Jin, Yongcan

第一作者：马春平

通信作者：Ma, CP[1];Jin, YC[1];Ma, CP[2];Xie, HB[3]|[144404c59386af0196f94]马春平;

机构：[1]Nanjing Forestry Univ, Jiangsu Prov Key Lab Pulp & Paper Sci & Technol, Nanjing 210009, Peoples R China;[2]Wuyi Univ, Sch Text Mat & Engn, Jiangmen, Peoples R China;[3]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[4]Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China;[5]Sun Yat sen Univ, Guangdong Engn Technol Res Ctr High performance Or, Key Lab Polymer Composite & Funct Mat, Sch Chem,Minist Educ, Guangzhou, Peoples R China

第一机构：Nanjing Forestry Univ, Jiangsu Prov Key Lab Pulp & Paper Sci & Technol, Nanjing 210009, Peoples R China

通信机构：corresponding author), Nanjing Forestry Univ, Jiangsu Prov Key Lab Pulp & Paper Sci & Technol, Nanjing 210009, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China.|贵州理工学院;

年份：2023

外文期刊名：LUMINESCENCE

收录：;EI(收录号：20233214495066);Scopus(收录号：2-s2.0-85166632859);WOS:【SCI-EXPANDED(收录号:WOS:001041057900001)】；

基金：Funding Guangdong Basic and Applied Basic Research Foundation, Grant/Award Numbers: 2022A1515010969, 2020A1515110767; Education Department of Guizhou Province, Grant/Award Number: KY(2018)059; Guangdong Key Laboratory of High Performance and Functional Polymer Materials, Grant/Award Number: 20220601; Guizhou Province Science and Technology Planning Project, Grant/Award Number: (2019) 1419; Jiangmen City Basic and Theoretical Scientific Research Science and Technology Planning Project, Grant/Award Number: 2020JC01019; Jiangsu Province Postdoctoral Research Funding Program, Grant/Award Number: 2019K045; National Natural Science Foundation of China, Grant/Award Number: 52203014; Science Foundation for Professor and Young Research Group of Wuyi University, Grant/Award Numbers: 2020AL016, JSQD2001; Wuyi University-Hong Kong/Macau Joint Research Funds, Grant/Award Number: 2021WGALH02

语种：英文

外文关键词：acid-base vapour sensing; AIE; mechanochromism luminescence; nanofibre films; twisted-structure compounds

摘要：Multistimuli-responsive fluorescent materials have garnered great research interest benefited from their practical applications. Two twisted-structure compounds containing tetraphenylethylene (TPE) as the aggregation-induced emission (AIE) group and a pyridine unit as the acid reaction site to obtain new multistimuli-responsive fluorescent compounds (namely, TPECNPy: TPECNPy-2 and TPECNPy-3) were successfully synthesized through a one-step Knoevenagel condensation reaction. The multiple-stimuli response process of TPECNPy was investigated by means of photoluminescence (PL) spectra and emission colour. The results showed that both TPECNPy compounds with excellent AIE abilities displayed reversible emission wavelength and colour changes in response to multiple external stimuli, including grinding-fuming by CH2Cl2 or annealing and HCl-NH3 vapour fuming. More importantly, fluorescent nanofibre films were prepared by electrospinning a solution of TPECNPy mixed with cellulose acetate (CA), and these exhibited reversible acid-induced discolouration, even with only 1 wt% TPECNPy. The results of this study may inspire strategies for designing multistimuli-responsive materials and preparing fluorescent sensing nanofibre films.