Controllable mechanochromic responses in fluorescent elastomers via perylene bisimide aggregation engineering

Dengchong Feng; Yechang Feng; Zhaozhao Xu; Jing Li; Shaolin Lu; Rui Chen; Yuzhao Yang; Cheng Wang; Zetong Ma; Zhongke Yuan; Xudong Chen

doi:10.1039/D5CC03586D

Controllable mechanochromic responses in fluorescent elastomers via perylene bisimide aggregation engineering

Dengchong Feng,^ab Yechang Feng,^d Zhaozhao Xu,^a Jing Li,^ab Shaolin Lu,^ab Rui Chen,^ab Yuzhao Yang,^ab Cheng Wang,^abc Zetong Ma,

*^ab Zhongke Yuan*^ab and Xudong Chen^abc

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* Corresponding authors

^a School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
E-mail: mazt@gdut.edu.cn

^b Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China

^c Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China

^d School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China

Abstract

This study presents an aggregation-engineering strategy to create tunable, reversible mechanochromic elastomers by doping carboxylated perylene bisimides (PBI) into polyurethane elastomers (TPUs). Additionally, the mechanochromic sensitivity of PBI was found to correlate with the hydrogen bonding strength between TPU and PBI, providing theoretical guidance for anticounterfeiting and sensing applications.

Chemical Communications

Controllable mechanochromic responses in fluorescent elastomers via perylene bisimide aggregation engineering

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