Brillouin Scattering Studies of Polyvinylidene Fluoride Films Subject to Unaxial Stretch.

Abstract

Brillouin scattering spectra of PVF2 films were studied for the first time as a function of draw ratio. The two peaks observed in the VV spectrum are assigned as due to scattering from the crystalline and the amorphous regions. The orientation parameter of the polymer chains as induced by stretch is obtained as a function of draw ratio from the hypersonic frequency data. The temperature dependent study shows an anomaly at 50 C, corresponding to the dispersion temperature associated with the primary relaxation of the polymer chain. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1980
Accession Number
ADA084341

Entities

People

  • C. H. Wang
  • David Cavanaugh
  • Y. Higashigaki

Organizations

  • University of Utah

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Brillouin Scattering
  • Chemical Compounds
  • Chemical Engineering
  • Chemistry
  • Composite Materials
  • Diffraction
  • Engineered Materials
  • Frequency Shift
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Optical Properties
  • Piezoelectric Polymers
  • Polymeric Films
  • Scattering
  • United States

Readers

  • Materials Science and Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow