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Synthesis of polyamides from diamines of the fluorene series
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fedotova, O. Y. Nesterova, Y. I. Korshak, V. V. |
| Copyright Year | 1984 |
| Description | Aromatic polyamides were prepared by polycondensation of isophthaloyl chloride and 2,7-diaminofluorene, 2,7-dimainofluorenone, or 2,5-diaminofluorenone in AcNMe2 or N-methyl-2-pyrrolidinone at 20 deg - 30 deg for 1.5-2 hr. Isophthaloyl chloride-2,5-diaminofluorenone copolymer 39609-29-51 was sol. in AcNMe2, N-methyl-2-pyrrolidinone, DMF, and hexamethylphosphoramide, whereas isophthaloyl chloride-2,7-diamino-fluorene copolymer 39609-30-3 and isophthaloyl chloride-2,7-diamino-fluorenone copolymer 39609-31-0 were not sol. in the solvents cited. The aromatic polyamides revealed thixotropic properties in 0.5% solutions in H2SO4. |
| File Size | 649129 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840011408 |
| Archival Resource Key | ark:/13960/t8nd0ss39 |
| Language | English |
| Publisher Date | 1984-03-01 |
| Access Restriction | Open |
| Subject Keyword | Polyamide Resins Diamines Copolymers Fluorine Compounds Chemical Analysis Condensation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
