Accession Number:

ADA237333

Title:

The Molecular View of Plastic Deformation and Precursor Processes of Crazing in Glassy Polypropylene and Polycarbonate

Descriptive Note:

Interim technical rept. no. 33, 1990-1991,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Report Date:

1991-05-31

Pagination or Media Count:

6.0

Abstract:

The kinematics and energetics of the anelastic processes of phenylene ring rotation and carbonate group rearrangements in polycarbonate, and the nature of coherent plastic relaxations under imposed conditions of pure shear to large plastic strains in polypropylene have been computationally simulated on computer generated molecular structure models of these polymers in glassy form. In addition, simulations have also been performed on the inelastic dilatational response of polypropylene to probe precursor processes to crazing. Results on these simulations will be presented.

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE