Accession Number:

AD0608331

Title:

THE VISCOELASTIC RELAXATION MECHANISMS OF INORGANIC POLYMERS: THE POLYPHOSPHORYLDIMETHYLAMIDES.

Descriptive Note:

Technical rept. no. 5,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES

Personal Author(s):

Report Date:

1964-09-01

Pagination or Media Count:

22.0

Abstract:

The viscoelastic properties of the polyphosphoryldimethy lamides were investigated by the technique of stress relaxation as a function of the P to N ratio, and therewith of the chain length. From the great similarity of the shape of the curves to those of normal organic polymers, i.e. polymethyl methacrylate or polystyrene as a function of the molecular weight, as well as from the difficulty of preparing samples below the gelpoint, it is concluded that the relaxation mechanism in the flow region is molecular flow, with bond interchange along the backbone either completely absent or present to only a minor extent. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE