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Pulling Single Chains out of a Collapsed Polymer Monolayer in Bad-Solvent Conditions

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Abstract

It has been theoretically predicted that a polymer chain in poor solvent conditions undergoes a phase transition from a collapsed globule to a stretched coil. In this paper, we present force-distance curves, obtained by atomic force microscopy (AFM), showing the characteristic forceplateau associated with this transition. We show that the magnitude of the force depends on the environment (interfacial energy) that the stretched coil experiences when it is pulled-out as it is predicted by the theory.

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Authors and Affiliations

  1. Institute for Materials and Processes, School of Engineering and Electronics & Centre for Materials Science and Engineering, University of Edinburgh, Edinburgh, EH9 3JL, UK

    Vasileios Koutsos & Frédéric Madani

  2. H. H. Wills Physics Lab, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, UK

    Heiko Haschke & Mervyn J. Miles

Authors
  1. Vasileios Koutsos
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  2. Heiko Haschke
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  3. Mervyn J. Miles
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  4. Frédéric Madani
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Koutsos, V., Haschke, H., Miles, M.J. et al. Pulling Single Chains out of a Collapsed Polymer Monolayer in Bad-Solvent Conditions. MRS Online Proceedings Library 734, 16 (2002). https://doi.org/10.1557/PROC-734-B1.6

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  • DOI: https://doi.org/10.1557/PROC-734-B1.6

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