Accession Number:

AD0781931

Title:

Investigation of the Character of Molecular Movement in the Polypropylene Method,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

Personal Author(s):

• Osintseva,L. A.

Report Date:

1973-07-26

Pagination or Media Count:

8.0

Abstract:

Structure of polypropylene crystals pp is studied microscopically and by the method of nuclear magnetic resonance NMR. The second moments of NMR of samples of pp with different molecular structure differ considerably. The nature of the relationship between second moments of NMR and temperature depends upon the degree of defects and imperfections in high-molecular compounds.

Descriptors:

• *Polypropylene
• *Nuclear magnetic resonance
• *Crystal structure
• Molecular properties
• USSR
• Polymers
• Molecular structure
• Crystal defects
• Microscopy
• Translations

Subject Categories:

• Crystallography
• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE