Activated Desorption of Water from a Polymer Surface

ORAL

Abstract

We studied water adsorption and desorption on the dipole ordered polymer poly(methylvinylidene cyanide) PMVC. The polymer has a distinct bulk absorbed water phase. The absorption of water is believed to distort the polymer chain placement. The kinetic parameters are obtained from thermal desorption spectra. Arrhenius plots yield the activation energy and the order of desorption process is determined from the best linear fit in the Arrhenius plots. Unusual angular dependence in thermal desorption is also observed.

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Authors

  • Carolina C. Ilie

    Department of Physics and Astronomy, University of Nebraska-Lincoln

  • P.A. Jacobson

    University of Nebraska at Lincoln

  • I.N. Yakovkin

    Institute of Physics of National Academy of Science of Ukraine, Kiev, Ukraine

  • L.G. Rosa

  • Matt Poulsen

  • D. Sahadeva Reddy

  • D. Sahadeva Reddy

  • Stephen Ducharme

    Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska at Lincoln, Physics and Astronomy at University of Nebraska-Lincoln, Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588-0111, Dept. of Physics \& Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, USA

  • Peter Dowben

    Department of Physics and Astronomy, University of Nebraska-Lincoln, Physics and Astronomy, University of Nebraska at Lincoln, Lincoln, NE, University of Nebraska-Lincoln