Surface Dynamics of Partially Tethered Layers

ORAL

Abstract

Thermally stimulated fluctuations on a polymer melt surface are important for adhesion, wetting, and tribology. We have found [1] that the characteristic time scale of these surface dynamics can be slowed by orders of magnitude by densely tethering the polymer chains to the underlying substrate. Thus, we are interested in understanding how the surface dynamics can be engineered by tailoring the degree of tethering of the chains. To achieve ``partially tethered'' polymer layers, sparsely grafted layers have been swollen with untethered chains and the surface dynamics studied as a function of the tethering details using X-ray Photon Correlation Spectroscopy. How the tethered chains are distributed through the layer has been determined using neutron reflectivity. Both grafting density and thermodynamic interaction between the tethered and untethered chains play roles in determining the surface dynamics.\\[4pt] [1] American Physical Society, APS March Meeting 2010, March 15-19, 2010, abstract \#Z19.009

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Authors

  • Jin Kuk Lee

    Dept. of Polymer Science, The University of Akron

  • Eric Baer

    Pennsylvania State University, Lincoln University, NHMFL, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron, Wayne State University, Physics Department, John Carroll University, Case Western Reserve University, Marietta College, SciPrint.org, High Performance Technologies, Inc., Air Force Institute of Technology, Johannes-Gutenberg-Universit\"at, Mainz, Germany, Martin-Luther-Universit\"at, Halle, Germany, Northwestern University, Youngstown State University, Dept. of Polymer Science, The University of Akron, X-ray Science Division, Argonne National Laboratory, NIST Center for Neutron Research, Electrical Engineering, Youngs. State U., Macromolecular, Case Western Reserve U.

  • Eric Baer

    Pennsylvania State University, Lincoln University, NHMFL, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron, Wayne State University, Physics Department, John Carroll University, Case Western Reserve University, Marietta College, SciPrint.org, High Performance Technologies, Inc., Air Force Institute of Technology, Johannes-Gutenberg-Universit\"at, Mainz, Germany, Martin-Luther-Universit\"at, Halle, Germany, Northwestern University, Youngstown State University, Dept. of Polymer Science, The University of Akron, X-ray Science Division, Argonne National Laboratory, NIST Center for Neutron Research, Electrical Engineering, Youngs. State U., Macromolecular, Case Western Reserve U.

  • Eric Baer

    Pennsylvania State University, Lincoln University, NHMFL, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron, Wayne State University, Physics Department, John Carroll University, Case Western Reserve University, Marietta College, SciPrint.org, High Performance Technologies, Inc., Air Force Institute of Technology, Johannes-Gutenberg-Universit\"at, Mainz, Germany, Martin-Luther-Universit\"at, Halle, Germany, Northwestern University, Youngstown State University, Dept. of Polymer Science, The University of Akron, X-ray Science Division, Argonne National Laboratory, NIST Center for Neutron Research, Electrical Engineering, Youngs. State U., Macromolecular, Case Western Reserve U.

  • Eric Baer

    Pennsylvania State University, Lincoln University, NHMFL, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron, Wayne State University, Physics Department, John Carroll University, Case Western Reserve University, Marietta College, SciPrint.org, High Performance Technologies, Inc., Air Force Institute of Technology, Johannes-Gutenberg-Universit\"at, Mainz, Germany, Martin-Luther-Universit\"at, Halle, Germany, Northwestern University, Youngstown State University, Dept. of Polymer Science, The University of Akron, X-ray Science Division, Argonne National Laboratory, NIST Center for Neutron Research, Electrical Engineering, Youngs. State U., Macromolecular, Case Western Reserve U.

  • Eric Baer

    Pennsylvania State University, Lincoln University, NHMFL, Brookhaven National Laboratory, University of Wisconsin Oshkosh, The University of Akron, Wayne State University, Physics Department, John Carroll University, Case Western Reserve University, Marietta College, SciPrint.org, High Performance Technologies, Inc., Air Force Institute of Technology, Johannes-Gutenberg-Universit\"at, Mainz, Germany, Martin-Luther-Universit\"at, Halle, Germany, Northwestern University, Youngstown State University, Dept. of Polymer Science, The University of Akron, X-ray Science Division, Argonne National Laboratory, NIST Center for Neutron Research, Electrical Engineering, Youngs. State U., Macromolecular, Case Western Reserve U.