东华大学学报（英文版）2025，Vol.42Issue(3)：251-258,8.DOI:10.19884/j.1672-5220.202403008
聚苯乙烯-丁二烯-苯乙烯掺杂苝二酰亚胺衍生物力致变色
Mechanochromism of a Perylene Diimide Derivative-Doped Styrene-Butadiene-Styrene Block Copolymer
摘要
Abstract
Mechanochromic materials respond to external stimuli and provide early warnings of material damage.Perylene diimide(PDI)-based materials have attracted attention because of their outstanding fluorescence performance.However,the application of PDI in mechanochromism is limited by the difficulty for mechanical forces to disrupt the aggregation of PDI and its derivatives,as well as the fluorescence quenching caused by continuousπ-π stacking between PDI molecules.To eliminate the fluorescence quenching effect caused by the aggregation of PDI and broaden its application fields,polyhedral oligomeric silsesquioxane(POSS)-PDI-POSS(PPP)was screened as PDI doping.The photophysical properties of PPP in both monomeric and aggregated states in different solvents were studied.Then,PPP and styrene-butadiene-styrene block copolymer(SBS)were mixed to prepare the PPP/SBS film.The mechanochromic properties of PPP/SBS film were explored.The fluorescence emission spectra confirmed that when the PPP mass fraction increased to 0.30％,the PPP/SBS film exhibited mechanochromic behavior under uniaxial deformation due to the changes in the molecular packing.关键词
力致变色/苝二酰亚胺/聚苯乙烯-丁二烯-苯乙烯/荧光Key words
mechanochromism/perylene diimide(PDI)/styrene-butadiene-styrene block copolymer(SBS)/fluorescence分类
化学化工引用本文复制引用
MUHAMMAD Arslan,陈珈,廖作桂,赵浩儒,顾丹丹,向阳双,江晓泽,孙宾..聚苯乙烯-丁二烯-苯乙烯掺杂苝二酰亚胺衍生物力致变色[J].东华大学学报（英文版）,2025,42(3):251-258,8.基金项目
Yunfu 2023 Innovation Team Project,China(CYRC202305) （CYRC202305）
