GROWTH OF CRYSTALS IN ORIENTED AMORPHOUS POLYETHYLENE

Abstract

The growth of crystals from the melt in oriented crosslinked polyethylene was studied by X-ray diffraction and birefringence as a function of orientation. It was found that for samples elongated more than about 200%, the crystals grow with their c-axes parallel to the stretching direction. At elongations less than 200%, there is a rather abrupt transition to a mode of growth in which the b-axis is perpendicular to the stretching direction with a tendency for the a-axis to be aligned parallel to this direction. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 15, 1961
Accession Number
AD0255706

Entities

People

  • Jane T. Judge
  • Richard S. Stein

Organizations

  • University of Massachusetts Amherst

Tags

DTIC Thesaurus Topics

  • Birefringence
  • Dielectric Polymers
  • Diffraction
  • Elongation
  • Orientation (Direction)
  • Transitions
  • Wave Phenomena
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.