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Title: Effect of tethering on the surface dynamics of a thin polymer melt layer

Abstract

The surface height fluctuations of a layer of low molecular weight (2.2k) untethered perdeuterated polystyrene (dPS) chains adjacent to a densely grafted polystyrene brush are slowed dramatically. Due to the interpenetration of the brush with the layer of “untethered chains” a hydrodynamic continuum theory can only describe the fluctuations when the effective thickness of the film is taken to be that which remains above the swollen brush. Furthermore, the portion of the film of initially untethered chains that interpenetrates with the brush becomes so viscous as to effectively play the role of a rigid substrate. They provide a route for tailoring polymer layer surface properties such as wetting, adhesion and friction, since these hybrid samples contain a covalently tethered layer at the bottom, does not readily dewet, and are more robust than thin layers of untethered short chains on rigid substrates.

Authors:
 [1];  [2];  [3];  [3];  [4];  [5]
  1. Central R&D, Istanbul (Turkey). Materials Technologies
  2. Bogazici Univ., Istanbul (Turkey). Dept. of Chemistry
  3. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  5. Univ. of Akron, OH (United States). Dept. of Polymer Science
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1339950
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Soft Matter
Additional Journal Information:
Journal Volume: 12; Journal Issue: 24; Journal ID: ISSN 1744-683X
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Uğur, Gökçe, Akgun, Bulent, Jiang, Zhang, Narayanan, Suresh, Satija, Sushil, and Foster, Mark D. Effect of tethering on the surface dynamics of a thin polymer melt layer. United States: N. p., 2016. Web. https://doi.org/10.1039/C6SM00179C.
Uğur, Gökçe, Akgun, Bulent, Jiang, Zhang, Narayanan, Suresh, Satija, Sushil, & Foster, Mark D. Effect of tethering on the surface dynamics of a thin polymer melt layer. United States. https://doi.org/10.1039/C6SM00179C
Uğur, Gökçe, Akgun, Bulent, Jiang, Zhang, Narayanan, Suresh, Satija, Sushil, and Foster, Mark D. Fri . "Effect of tethering on the surface dynamics of a thin polymer melt layer". United States. https://doi.org/10.1039/C6SM00179C. https://www.osti.gov/servlets/purl/1339950.
@article{osti_1339950,
title = {Effect of tethering on the surface dynamics of a thin polymer melt layer},
author = {Uğur, Gökçe and Akgun, Bulent and Jiang, Zhang and Narayanan, Suresh and Satija, Sushil and Foster, Mark D.},
abstractNote = {The surface height fluctuations of a layer of low molecular weight (2.2k) untethered perdeuterated polystyrene (dPS) chains adjacent to a densely grafted polystyrene brush are slowed dramatically. Due to the interpenetration of the brush with the layer of “untethered chains” a hydrodynamic continuum theory can only describe the fluctuations when the effective thickness of the film is taken to be that which remains above the swollen brush. Furthermore, the portion of the film of initially untethered chains that interpenetrates with the brush becomes so viscous as to effectively play the role of a rigid substrate. They provide a route for tailoring polymer layer surface properties such as wetting, adhesion and friction, since these hybrid samples contain a covalently tethered layer at the bottom, does not readily dewet, and are more robust than thin layers of untethered short chains on rigid substrates.},
doi = {10.1039/C6SM00179C},
journal = {Soft Matter},
number = 24,
volume = 12,
place = {United States},
year = {2016},
month = {5}
}

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Cited by: 4 works
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    Works referencing / citing this record:

    Unexpected Molecular Weight Dependence to the Physical Aging of Thin Polystyrene Films Present at Ultra‐High Molecular Weights
    journal, February 2019

    • Thees, Michael F.; Roth, Connie B.
    • Journal of Polymer Science Part B: Polymer Physics, Vol. 57, Issue 18
    • DOI: 10.1002/polb.24797

    Role of Chain Connectivity across an Interface on the Dynamics of a Nanostructured Block Copolymer
    journal, December 2018