Mechanochemical reactions within graft copolymeric assemblies: ultrasound-induced multimechanophore activation, arm chain scission, and aggregation morphology/size changes

Wang, Lijun; Zhang, Qiang; Chen, Yanfang; Yang, Xin; Zhang, Yangyang; Duan, Hanyi; Song, Haixiang; Wang, Yanfei; Zheng, Yongping

doi:10.1039/d2py01515c

Polym. Chem.

2023

DOI: 10.1039/d2py01515c

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Mechanochemical reactions within graft copolymeric assemblies: ultrasound-induced multimechanophore activation, arm chain scission, and aggregation morphology/size changes

Lijun Wang

Qiang Zhang

Yanfang Chen

et al.

Abstract: The development of nanosized aggregates that respond to mechanical stimuli is of great importance for applications related to ultrasound imaging or sensors, etc. In this work, we fabricate model assemblies...

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Cited by 5 publications

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Mechanochemistry: Fundamental Principles and Applications

Dong,

Li,

Chen

et al. 2024

Advanced Science

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Mechanochemistry is an emerging research field at the interface of physics, mechanics, materials science, and chemistry. Complementary to traditional activation methods in chemistry, such as heat, electricity, and light, mechanochemistry focuses on the activation of chemical reactions by directly or indirectly applying mechanical forces. It has evolved as a powerful tool for controlling chemical reactions in solid state systems, sensing and responding to stresses in polymer materials, regulating interfacial adhesions, and stimulating biological processes. By combining theoretical approaches, simulations and experimental techniques, researchers have gained intricate insights into the mechanisms underlying mechanochemistry. In this review, the physical chemistry principles underpinning mechanochemistry are elucidated and a comprehensive overview of recent significant achievements in the discovery of mechanically responsive chemical processes is provided, with a particular emphasis on their applications in materials science. Additionally, The perspectives and insights into potential future directions for this exciting research field are offered.

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Mechanochemistry: Fundamental Principles and Applications

Dong,

Li,

Chen

et al. 2024

Advanced Science

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Polymer Mechanochemistry in Confined Spaces

Hu,

Zhou,

et al. 2024

Angewandte Chemie

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With the development of mechanophores, polymer mechanochemistry has emerged as a powerful tool for creating force‐responsive materials with a variety of desired functions, ranging from color change to molecular release. However, it remains challenging to improve the efficiency of mechanochemical activation, especially for mechanophores embedded within polymer networks, which has profound implications for translating mechanochemical responses into materials‐centered applications. The physical and chemical conditions under spatial confinement differ significantly from those in the surrounding bulk environment, offering opportunities to facilitate mechanochemical activation. In this Minireview, we discuss and summarize recent progress in polymer mechanochemistry within confined spaces including surfaces/interfaces, polymer assemblies, and other nanostructures, specifically focusing on the effects of spatial confinement on the enhancement of mechanophore activation. We envision that combining confinement effects with advances in molecular and materials engineering will further improve the activation efficiency, capitalizing more fully on the potential of mechanophores toward practical applications.

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Polymer Mechanochemistry in Confined Spaces

Hu,

Zhou,

et al. 2024

Angew Chem Int Ed

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Mechanochemical reactions within graft copolymeric assemblies: ultrasound-induced multimechanophore activation, arm chain scission, and aggregation morphology/size changes

Abstract: The development of nanosized aggregates that respond to mechanical stimuli is of great importance for applications related to ultrasound imaging or sensors, etc. In this work, we fabricate model assemblies...

Cited by 5 publications

References 82 publications

Mechanochemistry: Fundamental Principles and Applications

Mechanochemistry: Fundamental Principles and Applications

Polymer Mechanochemistry in Confined Spaces

Polymer Mechanochemistry in Confined Spaces

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