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Photoreversible Bond-Based Shape Memory Polyurethanes with Light-Induced Self-Healing, Recyclability, and 3D Fluorescence Encryption.
Liu, Xiaochun; Wu, Jianyu; Tang, Zilun; Wu, Jianxin; Huang, Zhiyi; Yin, Xingshan; Du, Jiahao; Lin, Xiaofeng; Lin, Wenjing; Yi, Guobin.
Afiliación
  • Liu X; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Wu J; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Tang Z; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Wu J; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Huang Z; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Yin X; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Du J; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Lin X; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
  • Lin W; Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China.
  • Yi G; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
ACS Appl Mater Interfaces ; 2022 Jul 13.
Article en En | MEDLINE | ID: mdl-35830501
Developing a shape memory polyurethane with high mechanical properties, excellent self-healing has become a huge challenge for the development of smart materials. Herein, we report the design and fabrication of a shape memory polyurethane network terminated with coumarin units (HEOMC-PU) to address this conundrum. The synthesized HEOMC-PU exhibits exceptional mechanical performance with a breaking elongation of 746% and toughness of 55.5 MJ·m-3. By utilizing the dynamically reversible behavior of coumarin units to repair the damaged network, the efficient self-healing performance (99.2%) of HEOMC-PU is obtained. In addition, the prepared network and light-induced dynamic reversibility endow the HEOMC-PU with both liquid-state remoldability and solid-state plasticity, respectively, enabling polyurethane to be recycled and processed multiple times. Furthermore, based on the fluorescence responsive characteristic of coumarin, HEOMC-PU with a fluorescent pattern can be deformed into specific three-dimensional configurations by combining photolithography, self-healing, and the shape memory effect. Such a multilevel and multidimensional anti-counterfeiting platform with rewritable fluorescent patterns and reconfigurable shapes can open up a new encryption approach for future intelligent anti-counterfeiting.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2022 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos