X-Ray and Thermal Studies of Nylon 5-7.

Abstract

The unit cell and probable space group of Nylon 5,7 has been determined. The unit cell is monoclinic with the dimensions a = 0.483 nm, b = 0.935 nm, c = 1.662 nm and gamma = 58.9. The space group is probably P sub b which is non-centrosymmetric. Rolled, annealed samples show three dimensional orientation. The melting point peak of a rapidly cooled sample is about 213 C when it is heated at 20 C/min. Slow cooling, less than 1 deg/min generates a higher melting species, Tm = 228 C. Crystallinities are in the normal nylon range, up to 50% for a slow-cooled sample. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 14, 1980
Accession Number
ADA084942

Entities

People

  • Gerard Froyer
  • Ju-chui Lin
  • M. H. Litt

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum Foil
  • Crystal Structure
  • Crystallography
  • Crystals
  • Diffraction
  • Electron Diffraction
  • Films
  • Materials
  • Measurement
  • Melting Point
  • Military Research
  • Polymeric Films
  • Polymers
  • Three Dimensional
  • United States
  • X Rays
  • X-Ray Diffraction

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster