Design,Synthesis and Properties of Self-healing Luminescent Elastomers with Hydrogen-bonded Side-chain-modified Conjugated Polymer Backbones
Traditional optoelectronic devices suffer from loss of performance due to prolonged use,unavoidable deformation and fracture.To address this issue,it is significant to develop optoelectronic functional materials with strong mechanical tensile properties and self-healing abilities.Herein,we propose a design strategy for self-healing luminescent elastomers based on conjugated polymer backbones.The mechanical tensile properties and self-healing properties of the conjugated polymer are modulated by flexible hydrogen-bonded side chains,while maintaining the intrinsic photophysical characteristics.The synthesized elastomers exhibit excellent mechanical tensile properties(breaking tensile length:900％),room-temperature self-healing properties(self-healing efficiency:70％),and high fluorescence quantum efficiency(66％).Importantly,the photophysical properties of the elastomer were essentially fully recovered after undergoing 400％tensile deformation.In addition,we developed multifunctional optoelectronic devices using the prepared elastomers.This study provides a potential design strategy for developing materials for elastic optoelectronic devices.
万方数据
维普
