Macromolecular Characterization of Poly(bis(M-Chlorophenoxy)-Phosphazene)
Abstract
The macromolecular structures and structure-property relationships of five poly(bis(m-chlorophenoxy)phosphazene) samples are critically analyzed. The polymers are found to have high molecular weights and broad, bimodal molecular weight distributions. Differences are observed in polymer chain structure (branching) and solubility characteristics. An intrinsic viscosity-molecular weight relationship is established for the linear polymer in chloroform solution at 25C. The rate and mechanism for the thermal degradation in air of the polyphosphazenes are investigated and compared with that of polystyrene. Mechanical properties, thermal transitions, and thermal stability are markedly influenced by differences in the macromolecular and chemical structures of the polymers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1976
- Accession Number
- ADA032039
Entities
People
- Bernard R. Laliberte
- Elizabeth R. Plumer
- Gary L. Hagnauer
- Robert E. Singler
- Susan J. Kalian
Organizations
- United States Army Research Laboratory