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Synthesis of thermally stable polypyrazoles, polypyrimidines and other heteroaromatic polymers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bass, R. G. |
| Copyright Year | 1986 |
| Description | As part of a continuing effort to prepare high performance-high temperature polymers for functional and structural applications, the reactions of aromatic dipropynones with aromatic dihydrazine, aromatic dithiols, and aromatic diamidines to provide polypyrazoles, polyenonesulfides, and polypyrimidines respectively were investigated. During the past year, it was demonstrated that polypyrazoles and polyenonesulfides may be prepared by the proposed procedures. However, the preparation of polypyrimidines was not achieved. The preparation and characterization of some polypyrazolones by reaction or aromatic dihydrazines with an activated diacetylenic diester was achieved. |
| File Size | 1881828 |
| Page Count | 53 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870018361 |
| Archival Resource Key | ark:/13960/t3mw79w3n |
| Language | English |
| Publisher Date | 1986-03-05 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Stoichiometry Polyimides Polymerization Chemical Reactions Synthesis Chemistry Polysulfides Nuclear Magnetic Resonance Infrared Spectra High Temperature Monomers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
