THE VISCOELASTIC RELAXATION MECHANISMS OF INORGANIC POLYMERS: THE POLYPHOSPHORYLDIMETHYLAMIDES.
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. poly(methyl 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1964
- Accession Number
- AD0608331
Entities
People
- A. Eisenberg
- L. Teter
Organizations
- University of California, Los Angeles