Dissolving poly(tetrafluoroethylene) in low boiling halocarbons

Dissolving poly(tetrafluoroethylene) in low boiling halocarbons

An apparatus and methodology are described for dissolving poly(tetrafluoroethylene) in relatively low boiling perhalocarbons at temperatures as high as 330°C and up to about 20 MPa pressure. Cloud points are reported for these solutions with the following solvents: n‐perfluorohexane, perfluorodecali...

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Veröffentlicht in:Journal of applied polymer science 1995-04, Vol.56 (4), p.495-499
Hauptverfasser: Tuminello, William H., Brill, Donald J., Walsh, David J., Paulaitis, Michael E.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Solution and gel properties
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Zusammenfassung:An apparatus and methodology are described for dissolving poly(tetrafluoroethylene) in relatively low boiling perhalocarbons at temperatures as high as 330°C and up to about 20 MPa pressure. Cloud points are reported for these solutions with the following solvents: n‐perfluorohexane, perfluorodecalin, Freon® 113 (1,1,2‐trichloro‐1,2,2‐trifluoroethane) and Fluorinert® FC‐75 (a perfluorocarbon ether). Most of the solutions were studied above the critical temperatures of their solvents. © 1995 John Wiley & Sons, Inc.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1995.070560411