Time‐Dependent Information Encryption in Liquid Crystalline Polymer with Programmable Glass Transition Temperature

• DOI: 10.1002/adfm.202400030
• Publication Date: 2024-03-04T11:51:16Z
• Authors: Jianying Zhang; Chenjie Song; Shuoning Zhang; Shengyu Qin; Yunxiao Ren; Lanying Zhang; Jiumei Xiao; Kexuan Li; Wei Hu; Huai Yang
• Keywords: 02 engineering and technology; 0210 nano-technology

Abstract Time‐dependent dynamic information encryption technology is a promising approach to enhancing the security and complexity of transmission. Herein, time‐dependent model from liquid crystalline polymer (LCP) film with programmable glass transition temperature ( T g ) gradually adjustable fluorescence demonstrated. The achieved by adjusting degree order LC molecules via configuration interconversion spiropyran‐based materials (SPBMs), which can convert between V‐shaped colorless spiro (SP) rodlike dark‐colored merocyanine (MC) form. An LCP obtained visible light polymerization exhibits lower than UV light, because SPBM keep different configurations in two films. By ratio isomerization forms during process, values films change 11.6 °C 31.1 °C. Based on rate , successfully achieved.