Renewable Fluorescent Liquid Crystal Elastomers for Potential Use in Temperature Indicator During Short-time Vaccine Transportation  

作　　者：Xiao-Yang Cong Chen Yang De-Kang Guo Jin-Bao Guo 

机构地区：[1]Key Laboratory of Carbon Fibers and Functional Polymers,Ministry of Education,and College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China

出　　处：《Chinese Journal of Polymer Science》2025年第4期616-624,共9页高分子科学(英文版)

基　　金：support from the National Natural Science Foundation of China(Nos.52073017 and 51773009)。

摘　　要：With the rise in environmental awareness,the development of smart polymer materials is gradually becoming environmentally friendly and sustainable.Fluorescent liquid crystal elastomers(LCE)can change their shape or optical properties in response to external stimuli,showing great potential for applications in sensing,information storage,and encryption.However,their life cycle is often unsustainable and not in line with the circular economy model.Based on the principle of green chemistry,a fluorescent LCE was developed through the co-polymerization of multiple monomers with 1,2-dithiolane end groups,which exhibited excellent self-healing,reprocessing,and closed-loop recyclability.In addition,by tailoring the phase transition temperature of the LCE,the transparency and fluorescence intensity of the resulting material can change at a low temperature of 8.0°C.By further integrating light or acid/base-triggered fluorescence information,a proof-of-concept for temperature monitoring during short-time vaccine transportation using the reusable fluorescent LCE film is demonstrated.This study establishes a new environmentally friendly manufacturing strategy for multifunctional LCE materials.

关 键 词：Liquid crystal elastomer 1 2-Dithiolane Reversible ring-opening polymerization Temperature monitor RENEWABLE 

分 类 号：TQ334[化学工程—橡胶工业]