ArticleNature communications2022
The molecular mechanism of constructive remodeling of a mechanically-loaded polymer.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 29 citations in OpenAlex.
- Mechanochemical and machine-intelligent design of programmable materials: From molecular interactions to macroscale functionality.Materials today. Bio · 2026Review
- Hierarchical incremental learning deciphers molecular arrangements in multi-component materials.Nature communications · 2025Article
- Mechanochemistry: Fundamental Principles and Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Review
- Rapid self-strengthening in double-network hydrogels triggered by bond scission.Nature materials · 2025Article
- Autonomic Self-Healing of Polymers: Mechanisms, Applications, and Challenges.Molecules (Basel, Switzerland) · 2025Review
- Mechanochemical Approaches to Fundamental Studies in Soft-Matter Physics.Angewandte Chemie (International ed. in English) · 2024Review
- Sacrificial Mechanical Bond is as Effective as a Sacrificial Covalent Bond in Increasing Cross-Linked Polymer Toughness.Journal of the American Chemical Society · 2023Article
- Coumarin Dimer Is an Effective Photomechanochemical AND Gate for Small-Molecule Release.Journal of the American Chemical Society · 2023Article
- Experimental quantitation of molecular conditions responsible for flow-induced polymer mechanochemistry.Nature chemistry · 2023Article
- Allosteric control of olefin isomerization kinetics via remote metal binding and its mechanochemical analysis.Nature communications · 2023Article
- Force ahead: Emerging Applications and Opportunities of Polymer Mechanochemistry.ACS polymers Au · 2022Article
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Authors and funding
7 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Large or repeated mechanical loads usually degrade polymers by accelerating fragmentation of their backbones but rarely, they can cause new backbone bonds to form. When these new bonds form faster than the original bonds break, mechanical degradation may be arrested or reversed in real time. Exploiting such constructive remodeling has proven challenging because we lack an understanding of the competition between bond-forming and bond-breaking reactions in mechanically-stressed polymers. Here we report the molecular mechanism and analysis of constructive remodeling driven by the macroradical products of mechanochemical fragmentation of a hydrocarbon backbone. By studying the changing compositions of a random copolymer of styrene and butadiene sheared at 10 °C in the presence of different additives we developed an approach to characterizing this growth/fracture competition, which is generalizable to other underlying chemistries. Our results demonstrate that constructive remodeling is achievable under practically relevant conditions, requires neither complex chemistries, elaborate macromolecular architectures or free monomers, and is amenable to detailed mechanistic interrogation and simulation. These findings constitute a quantitative framework for systematic studies of polymers capable of autonomously counteracting mechanical degradation at the molecular level.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.