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An Analysis of Secondary Relaxations in Bisphenol-A Polysulfone

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Book cover Order in the Amorphous “State” of Polymers

Abstract

The dynamic mechanical2–12 and dielectric7 behavior of bisphenol-A polysulfone (PSF) has been studied by several investigators over a wide range of frequency. These measurements suggest the presence of a low temperature (gamma) transition in the range of 163–197 K (corrected to a frequency of 11 Hz). Baccaredda et al.2 have associated this relaxation with rotational motion of water molecules bound to polar groups along the chain backbone thereby offering an explanation as to why the gamma peak is enhanced by the absorption of water. Kurz et al.6 have noted the persistence of this transition when samples have been dried. Kurz et al.6 suggest that the gamma process may be associated with motions involving the sulfone group which are enhanced through association with water.

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References

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Author notes

  1. A. Letton

    Present address: Polymer Materials Science Group, Analytical Services, B-1218, Texas Applied Science and Technology Laboratory, Dow Chemical U.S.A., Freeport, Texas, 77541, USA

Authors and Affiliations

  1. Department of Chemical and Nuclear Engineering and the Polymer Research Center, University of Cincinnati, Cincinnati, Ohio, 45221, USA

    A. Letton & J. R. Fried

  2. Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA

    W. J. Welsh

Authors
  1. A. Letton
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  2. J. R. Fried
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  3. W. J. Welsh
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Editor information

Editors and Affiliations

  1. Michigan Molecular Institute, 1910 West St. Andrews Road, Midland, Michigan, 48640, USA

    Steven E. Keinath  & Robert L. Miller  & 

  2. Dow Chemical Company, 1702 Building, Midland, Michigan, 48674, USA

    James K. Rieke

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© 1987 Plenum Press, New York

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Letton, A., Fried, J.R., Welsh, W.J. (1987). An Analysis of Secondary Relaxations in Bisphenol-A Polysulfone. In: Keinath, S.E., Miller, R.L., Rieke, J.K. (eds) Order in the Amorphous “State” of Polymers. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1867-5_17

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  • DOI: https://doi.org/10.1007/978-1-4613-1867-5_17

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-9041-4

  • Online ISBN: 978-1-4613-1867-5

  • eBook Packages: Springer Book Archive

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