基于可重构光开关多态荧光聚合物的信息加密工具箱  

Reconfigurable photoswitchable multistate fluorescent polymer-based information encryption toolbox

作　　者：姜佳伟 张培盛 田勇 林众 张崇华 崔家喜 陈建 陈旭东 Jiawei Jiang;Peisheng Zhang;Yong Tian;Zhong Lin;Chonghua Zhang;Jiaxi Cui;Jian Chen;Xudong Chen(Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers,Hunan Province College Key Laboratory of QSAR/QSPR,School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;College of Chemistry and Key Laboratory of Polymeric Materials&Application Technology of Hunan Province,and Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province,Xiangtan University,Xiangtan 411105,China;Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China;Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,School of Chemistry,Sun Yat-sen University,Guangzhou 510006,China;Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory,Jieyang 515200,China)

机构地区：[1]Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers,Hunan Province College Key Laboratory of QSAR/QSPR,School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China [2]College of Chemistry and Key Laboratory of Polymeric Materials&Application Technology of Hunan Province,and Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province,Xiangtan University,Xiangtan 411105,China [3]Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China [4]Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,School of Chemistry,Sun Yat-sen University,Guangzhou 510006,China [5]Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory,Jieyang 515200,China

出　　处：《Science China Materials》2023年第5期1949-1958,共10页中国科学（材料科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC,52273206,52173278,and 51833011);Hunan Provincial Natural Science Foundation of China(2021JJ10029,2020JJ3021,and 2021JJ40192);the Open Fund of Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers(E22125);the Science and Technology Innovation Program of Hunan Province(2022RC1075 and 2021RC5028)。

摘　　要：具有坚固、智能、且易于编程等特性的信息加密材料对于防止信息泄露和打击造假具有重要意义.为此,我们开发了一种信息加密材料工具箱,该工具箱基于一系列新型的自修复光开关双态(P1和P2)和多态(P3)荧光聚合物.这类聚合物含有两种二芳基乙烯光致变色荧光基团(SDTE和BTBA)和四重氢键构筑单元(UPy).在不同波长的光照射下,P1/P2可以在绿-猝灭/红-猝灭两态之间交替,而P3可以在红-绿-猝灭三态之间变化.它们可以作为像素单元用来制备可重构的图案和代码;所得到的图案和代码均显示出良好的机械性能和优异的光学特性,包括快速的光响应性、突出的光可逆性、优异的荧光热稳定性和抗酸碱腐蚀的能力.本文展示了该工具箱在3D代码阵列和二维码信息加密中的应用潜能.High-performance information encryption materials are crucial for developing advanced technologies that prevent information leakage and combat fraud.These materials must be robust,intelligent,and easily programmable.To meet these criteria,we developed an information encryption toolbox based on a series of novel self-healing photoswitchable dual(P1 and P2)and multistate(P3)fluorescent polymers using two photochromic fluorescent diarylethenes,i.e.,4-hydroxybutyl acrylate link 1,2-bis(2-methyl-1-benzothiophene-1,1-dioxide-3-yl)perfuoro-cyclopentene(SDTE),4-(acryloyloxy)butyl 4-oxo-4-butanoate link 2,3-bis(2-methylbenzo[b]thiophen-3-yl)-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-one(BTBA)and hydrogen-bonding units,i.e.,2-ureido-4[1H]-pyrimidinone(UPy).Upon irradiation with different wavelength lights,P1/P2 can be alternated between green/red and quenched states,while P3 can be switched among red,green,and quenched states.Using these polymers to fabricate pixel units can produce reconfigurable patterns and codes displaying good mechanical properties and excellent optical characteristics,including rapid photoresponsiveness,robust photoreversibility,superior fluorescent thermal stability,and strong resistance to acid and base corrosion.Furthermore,we also demonstrated the immediate application opportunities of our toolbox in three-dimensional-code arrays and quick response codes.

关 键 词：PHOTOSWITCH DIARYLETHENE self-healing polymer thermal stability information encryption 

分 类 号：TQ317[化学工程—高聚物工业] TP309.7[自动化与计算机技术—计算机系统结构]