摘要
近年来,液晶网络材料因为在人工肌肉、软体机器人、微流控制器和4D打印材料等智能软器件领域的应用受到了越来越多的关注。液晶网络材料在化学结构上同时包含聚合物交联网络和液晶基元,在性能上同时具有聚合物的可加工性、化学稳定性和力学特性以及液晶可调的各向异性,因此具有外观易编辑、功能可调、对多种刺激都能响应等优点。利用这些特点,可以将指定的形状或颜色信息精确地写入到材料中,同时在特定外界刺激(光,热,电场,溶剂等)下使信息再次显现,实现信息的存储、加密与读取。本文简要论述了具有可编辑颜色(包括结构色和荧光颜色)和形状记忆的液晶网络材料的信息存储方式,重点介绍了液晶网络材料在伪装、多级信息存储与信息传递等方面的应用研究进展。
Liquid crystalline networks have attracted more and more interest in recent years because of the potential application in artificial muscles,soft robotics,microfluidics,4D printing,etc. Since their chemical structures contain the cross-linked networks and mesogens endowing them with good processability,stability and mechanical performance of polymers along with the adjustable orientation of liquid crystal molecules,the liquid crystalline networks usually have the advantages such as editable appearance,tunable function,and responsiveness to diverse stimuli. Thus,shape and color information can be accurately written into the material,which will reappear under specific external stimulus(e. g.,light,heat,electric field,and solvent),thus can realize the storage,encryption and reading of information. This review briefly discusses the information storage mechanism based on liquid crystalline networks with manipulatable color(e. g.,structural color and fluorescence)and shape memory. Their applications in camouflage,multi-level information storage and information transmission are also summarized.
作者
黄银亮
孙俊杰
黄帅
李全
HUANG Yin-liang;SUN Jun-jie;HUANG Shuai;LI Quan(Institute of Advanced Materials,Southeast University,Nanjing 211189,China;College of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China)
出处
《液晶与显示》
CAS
CSCD
北大核心
2023年第1期49-59,共11页
Chinese Journal of Liquid Crystals and Displays
基金
国家自然科学基金(No.52003050)
江苏省自然科学基金(No.BK20200343)
江苏省“双创团队”
东南大学“至善青年学者”项目。
关键词
液晶网络
形状记忆
可编辑颜色
信息存储
liquid crystalline network
shape memory
programmable color
information storage
