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The preparation of new perfluoroether fluids exhibiting excellent thermal-oxidative stabilities
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Jones Jr., W. R. Juhlke, T. J. Lagow, R. J. Kawa, H. Bierschenk, T. R. |
| Copyright Year | 1986 |
| Description | A series of low molecular weight perfluoroalkylethers (PFAE) were synthesized by direct fluorination. Viscosity-temperature properties and oxidation stabilities were determined. Viscosity-temperature correlations indicated that increases in branching and increases in the size of the branching substituent caused a deterioration in viscometric properties (i.e., an increase in ASTM slope). In addition, increasing the ratio of carbon to oxygen in these compounds also increased the ASTM slope. Preliminary oxidation stability tests indicated that highly branched PFAE fluids. (i.e., those containing quaternary carbons) may be less stable than either those containing a single trifluoromethyl pendant group or those containing no branching at all. |
| File Size | 780796 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860016003 |
| Archival Resource Key | ark:/13960/t4dn91c79 |
| Language | English |
| Publisher Date | 1986-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Viscometry Viscosity Perfluoro Compounds Lubricants Branching Physics Alkyl Compounds Oxidation Synthesis Chemistry Ethers 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 |
