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Multivalent Adhesion and Friction Dynamics Depend on Attachment Flexibility

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    Multivalent Adhesion and Friction Dynamics Depend on Attachment Flexibility
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    † INM - Leibniz Institute for New Materials, Campus D2 2, Saarbrücken 66123, Germany
    ‡ Physics Department, Saarland University, Campus D2 2, Saarbrücken 66123, Germany
    § Department of Chemistry, Saarland University, Campus C4 2, Saarbrücken 66123, Germany
    ∥ Dipartimento di Fisica, Universitá degli Studi di Milano, Via Celoria 16, Milano 20133, Italy
    ⊥ School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
    # The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
    *E-mail: [email protected]
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    The Journal of Physical Chemistry C

    Cite this: J. Phys. Chem. C 2017, 121, 29, 15888–15896
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    https://doi.org/10.1021/acs.jpcc.7b05412
    Published July 12, 2017
    Copyright © 2017 American Chemical Society
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    Abstract

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    Self-assembled monolayers introduce chemical functionalities to material surfaces, providing a route to tune their equilibrium and dynamical properties. We report on atomic force microscopy measurements and simulations of adhesion and friction forces caused by a macromolecular host–guest system, where the host molecules are attached to silicon oxide surfaces by means of self-assembled silane layers. Different preparation routes for the silane layers lead to different flexibility of the molecular attachment. The velocity dependencies of the work of separation and of friction vary significantly for attachments with different flexibility. Stiff attachment leads to low pull-off forces at low pulling velocity and to vanishing friction forces in the limit of low sliding velocity. Flexible attachment enhances cooperative contribution of multiple molecular bonds to adhesion and friction and causes significant friction at low sliding velocity. The latter observation can be explained by the contribution of intermittent contact aging to the friction force.

    Copyright © 2017 American Chemical Society

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    This article is cited by 10 publications.

    1. John S. Andre, Najae Escoffery, Nathan W. Ulrich, Yuchen Wu, Wen Guo, Mengshijie Yang, John Myers, Zhan Chen. Ultraviolet Light-Sensitive Debonding Layer for Reducing Adhesion of Polymer Adhesives for Recycling. The Journal of Physical Chemistry C 2022, 126 (44) , 18907-18917. https://doi.org/10.1021/acs.jpcc.2c06096
    2. Melisa M. Gianetti, Roberto Guerra, Andrea Vanossi, Michael Urbakh, Nicola Manini. Thermal Friction Enhancement in Zwitterionic Monolayers. The Journal of Physical Chemistry C 2022, 126 (5) , 2797-2805. https://doi.org/10.1021/acs.jpcc.1c09542
    3. Roland Bennewitz. Friction Force Microscopy. 2024, 1-16. https://doi.org/10.1007/978-3-031-63065-1_1
    4. Md Mahmudul Hasan, Alison C. Dunn. Fewer polymer chains but higher adhesion: How gradient-stiffness hydrogel layers mediate adhesion through network stretch. The Journal of Chemical Physics 2023, 159 (18) https://doi.org/10.1063/5.0174530
    5. Michael Penth, Kordula Schellnhuber, Roland Bennewitz, Johanna Blass. Nanomechanics of self-assembled DNA building blocks. Nanoscale 2021, 13 (20) , 9371-9380. https://doi.org/10.1039/D0NR06865A
    6. Wengen Ouyang, Yao Cheng, Ming Ma, Michael Urbakh. Load-velocity-temperature relationship in frictional response of microscopic contacts. Journal of the Mechanics and Physics of Solids 2020, 137 , 103880. https://doi.org/10.1016/j.jmps.2020.103880
    7. Wengen Ouyang, Shivaprakash N. Ramakrishna, Antonella Rossi, Michael Urbakh, Nicholas D. Spencer, Andrea Arcifa. Load and Velocity Dependence of Friction Mediated by Dynamics of Interfacial Contacts. Physical Review Letters 2019, 123 (11) https://doi.org/10.1103/PhysRevLett.123.116102
    8. Johanna Blass, Bianca Bozna, Marcel Albrecht, Gerhard Wenz, Roland Bennewitz. Molecular kinetics and cooperative effects in friction and adhesion of fast reversible bonds. Physical Chemistry Chemical Physics 2019, 21 (31) , 17170-17175. https://doi.org/10.1039/C9CP03350E
    9. Mengwei Han, Rosa M. Espinosa-Marzal. Molecular Mechanisms Underlying Lubrication by Ionic Liquids: Activated Slip and Flow. Lubricants 2018, 6 (3) , 64. https://doi.org/10.3390/lubricants6030064
    10. Christiane Petzold, Marcus Koch, Roland Bennewitz. Friction force microscopy of tribochemistry and interfacial ageing for the SiO x /Si/Au system. Beilstein Journal of Nanotechnology 2018, 9 , 1647-1658. https://doi.org/10.3762/bjnano.9.157
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    The Journal of Physical Chemistry C

    Cite this: J. Phys. Chem. C 2017, 121, 29, 15888–15896
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.jpcc.7b05412
    Published July 12, 2017
    Copyright © 2017 American Chemical Society
    Request reuse permissions

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