ArticleNature communications2025
Unusual photo-tunable mechanical transformation of azobenzene terminated aliphatic polycarbonate.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The trial behind it
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Who cites it
4 citing papers in PubMed.
- Switchable adhesion of phase-transition eutectogels with integrated machine learning-enhanced intelligent adhesion sensing.Nature communications · 2026Article
- Unlocking azobenzene isomerization mechanismsChemical science · 2026Article
- Structural Engineering of Photoisomerizable Covalent Organic Frameworks: Design Principles and Functional Applications.Polymer science & technology (Washington, D.C.) · 2025Review
- Isomerization of spiropyran photoswitches in microphase-separated block copolymers.Science and technology of advanced materials · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Human substance needsśś have been enriched by the development of smart-responsive materials possessing unique responsiveness and mechanical variability. However, acquiring these features in photoresponsive energy-driven elastomers is challengeable but highly desirable. Here, we report fabrication of physically-crosslinked elastomers based on an aliphatic polycarbonate terminated with one azobenzene derivative as the end group. Upon irradiation of UV light, the aliphatic polycarbonate shows unusual mechanical transformation from trans-azobenzene-rich elasticity to cis-azobenzene-rich plasticity, which is contrary to the photo-triggered mechanics of other azopolymers. This indicates that stronger interaction may be established between the terminated cis-azobenzenes and the benzene rings in the side chain of polymer, leading to a higher crosslinking density appeared in the cis-azobenzene-rich sample. This azobenzene-terminated polymer is an energy-driven elastomer, which has photo-switchable supramolecular interactions, showing photo-tunable mechanical properties (the half-life period of the cis-azobenzene is 16.9 h). More interestingly, the photoinduced mechanical change occurs at room temperature, enabling the aliphatic polycarbonate to behave as non-thermally switchable ultra-strong adhesive for different substrates, which is specifically suitable for smart dressings to promote wound healing. This switchable mechanical feature of elastomers may be a reference for smart elastomers towards advanced applications.
Identifiers
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Registered trials
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