Temperature and pressure dependence of the viscosities of perfluoropolyether fluids

The viscosities of two structurally different perfluoropolyether fluids were determined at a series of temperatures and pressures, from 25 to 100°C and from 1 to 1000 bars. Flow activation energies and volumes as well as their temperature and pressure coefficients were derived. An attempt was made t...

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Bibliographic Details
Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 1987-03, Vol.25 (3), p.603-609
Main Authors: Cantow, M. J. R., Barrall II, E. M., Wolf, B. A., Geerissen, H.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Rheology and viscoelasticity
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Summary:The viscosities of two structurally different perfluoropolyether fluids were determined at a series of temperatures and pressures, from 25 to 100°C and from 1 to 1000 bars. Flow activation energies and volumes as well as their temperature and pressure coefficients were derived. An attempt was made to relate measured and derived quantities to the compound structures.
ISSN:0887-6266
1099-0488
DOI:10.1002/polb.1987.090250311