Sorptive dilation of polysulfone and poly(ethylene terephthalate) films by high-pressure carbon dioxide
β Scribed by Yoshinori Kamiya; Takuji Hirose; Yasutoshi Naito; Keishin Mizoguchi
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 899 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0887-6266
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π SIMILAR VOLUMES
Experimental results are reported for the crystallization and sorption kinetics of poly(ethylene terephthalate) in the presence of CO2 at 35 "C and pressures of 40,50, and 60 atm. The results show that the time scale for crystallization is significantly greater than the time scale for CO2 sorption a
## Abstract Mass sorption/desorption and volume dilation/consolidation measurements are reported for tetramethyl and hexafluoro polycarbonate samples in the presence of carbon dioxide pressures up to 900 psia at 35Β°C. These results are combined with previous results for bisphenolβAβpolycarbonate. T
## Abstract Sorption and dilation properties of the system poly(__p__βphenylene sulfide) (PPS) and carbon dioxide have been investigated at pressures up to 50 atm over the temperature range 25β85Β°C. The shapes of the sorption isotherms are in agreement with those predicted by the dualβmode theory.
Glass transition in the system poly(methy1 methacrylate)/compressed gas was studied as a function of the gas pressure p using a high-pressure Tian-Calvet heat flow calorimeter. Measurements were made on PMMA-CHI, ;-C&, and ;-C02 at pressures to 200 atm. All three gases plasticize the polymer leading