Light-Responsive Polyblend Films with Reconfigurable Surface Micropatterns as Rewritable Information Storage Media  

作　　者：Jian Chen Xiaoyu Yang Jie Chen Umair Azhar Feiyan Chen Ruijie Zhu Chunhua Zhou Shichun Jiang Wei Wang Peiming Xu Chuanyong Zong 

机构地区：[1]Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials,School of Chemistry and Chemical Engineering,University of Jinan,Jinan,Shandong,250022 China [2]Taishan Sports Industry Group Co.,Ltd.,Dezhou,Shandong,253600 China [3]Department of Chemical Engineering,Khwaja Fareed University of Engineering and Information Technology,Rahim Yar Khan,Punjab,Pakistan [4]School of Materials Science and Engineering,Tianjin University,Tianjin,300072 China

出　　处：《Chinese Journal of Chemistry》2023年第3期273-279,共7页中国化学（英文版）

基　　金：supports from the National Natural Science Foundation of China (Nos.21704033,52173168);the Natural Science Foundation of Shandong Province (Nos.ZR2020LFG009,SZR1946);the China Postdoctoral Science Foundation (No.2019M662441).

摘　　要：Stimulus-sensitive surfaces with tunable morphologies exhibit a wide range of applications in the fields of surface science and engineering.Herein,a cost-effective yet practical strategy is proposed to fabricate photo-sensitive patterning surface on film/substrate wrinkle system based on an azo-containing polyblend.By manipulating the stress field of the bilayer system globally and/or locally upon the stress relaxation triggered by the reversible cis-trans isomerization of the azobenzene,heating/cooling triggered surface wrinkles on the polyblend films could be tailor-made with visible-light-irradiation.Notably,upon selective photo-irradiation,bespoke surface patterns may be cyclically generated or eliminated,allowing these reconfigurable patterned polyblend surfaces to be used as rewritable information storage media for non-ink printing.The as-prepared photo-printed information patterns with high-resolution are shown to be rewritable for multiple cycles and legible for over 90 d in dark ambient conditions.This study not only provides a versatile strategy for flourishing the stimulus-sensitive systems,but also sheds light on the stress relaxation-triggered morphological evolution of the wrinkling polyblend films.

关 键 词：Surface wrinkling Azo compounds Polymers ISOMERIZATION Information storage Azo films 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]