Novel CO{sub 2}-thickeners for improved mobility control
The objective of this study was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO{sub 2}. Hydrocarbon-fluorocarbon random copolymers, sulfonated hydrocarbon-fluorocarbon random copolymers, semifluorinated trialkyltin fluorides and small hydrogen-bonding compounds have been evaluated. Random copolymers of styrene and heptadecafluorodecyl acrylate yielded substantial increases in viscosity. Falling cylinder viscometry results indicated that the 29%styrene--71%fluoroacrylate bulk-polymerized copolymer induced very significant viscosity increases at copolymer concentrations of 0.1--5.0wt%.
- Research Organization:
- National Energy Technology Lab. (NETL), Tulsa, OK (United States). National Petroleum Technology Office (NPTO)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC26-98BC15108
- OSTI ID:
- 750876
- Report Number(s):
- DOE/BC/15108-4; TRN: AH200017%%45
- Resource Relation:
- Other Information: PBD: 2 Feb 2000
- Country of Publication:
- United States
- Language:
- English
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