Accession Number:

ADA149100

Title:

On Shrinkage and Molecular Extension.

Descriptive Note:

Technical rept.,

Corporate Author:

CORNELL UNIV ITHACA NY DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

Report Date:

1984-12-20

Pagination or Media Count:

13.0

Abstract:

When an oriented polymer is heated, it often retracts towards an isotropic state. The change in shape is a measure of the extension of the molecules in the oriented sample. The several different functions that have been used to define molecular extension are derived and reviewed. It is concluded that the ratio oriented lengthshrunk length is the most appropriate, and that a direct test by neutron scattering would be feasible. Originator-supplied keywords include network extension, shrinkage, and retraction.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE