skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Novel CO{sub 2}-thickeners for improved mobility control

Technical Report ·
DOI:https://doi.org/10.2172/750876· OSTI ID:750876

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