دورية أكاديمية
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Polymer time crystal: Mechanical activation of reversible bonds by low-amplitude high frequency excitations.

التفاصيل البيبلوغرافية
العنوان: Polymer time crystal: Mechanical activation of reversible bonds by low-amplitude high frequency excitations.
المؤلفون: Heidari M; Gulliver, CNRS, ESPCI Paris, Université PSL, 75005 Paris, France., Gaichies T; Gulliver, CNRS, ESPCI Paris, Université PSL, 75005 Paris, France.; Département de chimie, École normale supérieure, Université PSL, 75005 Paris, France., Leibler L; Gulliver, CNRS, ESPCI Paris, Université PSL, 75005 Paris, France., Labousse M; Gulliver, CNRS, ESPCI Paris, Université PSL, 75005 Paris, France.
المصدر: Science advances [Sci Adv] 2024 May 24; Vol. 10 (21), pp. eadn6107. Date of Electronic Publication: 2024 May 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 101653440 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2375-2548 (Electronic) Linking ISSN: 23752548 NLM ISO Abbreviation: Sci Adv Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Washington, DC : American Association for the Advancement of Science, [2015]-
مستخلص: Reversible supramolecular bonds play an important role in materials science and in biological systems. The equilibrium between open and closed bonds and the association rate can be controlled thermally, chemically, by mechanical pulling, by ultrasound, or by catalysts. In practice, these intrinsic equilibrium methods either suffer from a limited range of tunability or may damage the material. Here, we present a nonequilibrium strategy that exploits the dissipative properties of the system to control and change the dynamic properties of sacrificial and reversible networks. We show theoretically and numerically how high-frequency mechanical oscillations of very low amplitude can open or close bonds. This mechanism indicates how reversible bonds could alleviate mechanical fatigue of materials especially at low temperatures where they are fragile. In another area, it suggests that the system can be actively modified by the application of ultrasound to induce gel-fluid transitions and to activate or deactivate adhesion properties.
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تواريخ الأحداث: Date Created: 20240523 Latest Revision: 20240525
رمز التحديث: 20240525
مُعرف محوري في PubMed: PMC11114238
DOI: 10.1126/sciadv.adn6107
PMID: 38781335
قاعدة البيانات: MEDLINE
الوصف
تدمد:2375-2548
DOI:10.1126/sciadv.adn6107