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Solubility of Polymers and Copolymers in Supercritical CO2
Abstract
Cloud-point data to temperatures of 270 °C and 3000 bar are presented for CO 2 with the family of poly(acrylates) including methyl, ethyl, propyl, butyl, ethylhexyl, and octadecyl, with poly(butyl methacrylate), with poly(vinyl acetate), with statistically random copolymers of poly(ethylene- co -methyl acrylate) with 41, 31, and 18 mol % acrylate, with poly(tetrafluoroethylene- co -hexafluoropropylene) and poly(vinylidene- co -hexafluoropropylene) copolymers, each with ∼20 mol % hexafluoropropylene, and with Teflon AF. Over the same range of conditions, CO 2 cannot dissolve polyethylene, poly(acrylic acid), poly(methyl methacrylate), poly(ethyl methacrylate), polystyrene, poly(vinyl fluoride), or poly(vinylidene fluoride). CO 2 is a weak solvent that exhibits the temperature-sensitive characteristics observed with polar solvents. The solubility of a nonpolar hydrocarbon polymer or a copolymer in CO 2 can be increased by at least partially fluorinating the polymer or by incorporating some polar groups into the backbone architecture of the polymer. Because it is such a weak solvent, CO 2 can distinguish differences in polymer architecture even for polymers from the same chemical family, which means that polymer free volume plays a role in determining solubility.
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Cited by
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Raveendran, P., & Wallen, S. L. (2002) · Journal of the American Chemical Society · doi:10.1021/ja0174635 · Cited by 337
Polar Attributes of Supercritical Carbon Dioxide
Raveendran, P., Ikushima, Y., & Wallen, S. L. (2005) · Accounts of Chemical Research · doi:10.1021/ar040082m · Cited by 316
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Bains, W. (2004) · Astrobiology · doi:10.1089/153110704323175124 · Cited by 193
Metadata
- Authors
- Rindfleisch, F., DiNoia, T. P., & McHugh, M. A.
- Venue
- The Journal of Physical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-01-01
- Volume
- 100
- Issue
- 38
- Pages
- 15581-15587
- ISSN
- 0022-3654 (ISSN-L)
- 1541-5740
- OpenAlex
- W2049215076
- Cited by
- 449
- References
- 0
- FWCI
- 12.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rindfleisch, F., DiNoia, T. P., & McHugh, M. A. (1996). Solubility of Polymers and Copolymers in Supercritical CO2. The Journal of Physical Chemistry. https://doi.org/10.1021/jp9615823
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