The viscosities of polystyrene melts containing three different dissolved gases, carbon dioxide, and the refrigerants R134a (1,1,1,2-tetrafluoroethane) and R152a (1,1-difluoroethane) are investigated at pressures up to 20 MPa. These pressures reach near-critical and supercritical conditions for the
β¦ LIBER β¦
Diffusion of dissolved gases in molten condensation polymers
β Scribed by Milton E. Morrison
- Publisher
- John Wiley and Sons
- Year
- 1967
- Tongue
- English
- Weight
- 132 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Perturbedβhardβchain theory is extended to mixtures of polymers and volatile fluids, including supercritical gases. This extension is used to derive an expression for Henry's constant for a solute in a molten polymer. Theoretical calculations and data reduction are reported for a variet