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

Title: For Stimul-Responsive Polymers with Enhanced Efficiency in Reservoir Recovery Processes

Abstract

Acrylamide-based hydrophobically modified (HM) polybetaines containing N-butylphenylacrylamide (BPAM) and varying amounts of either sulfobetaine (3-(2-acrylamido-2-methylpropanedimethylammonio)-1-propanesulfonate, AMPDAPS) or carboxybetaine (4-(2-acrylamido-2-methylpropyldimethylammonio) butanoate, AMPDAB) comonomers were synthesized via micellar copolymerization. The terpolymers were characterized via {sup 13}C NMR and UV spectroscopies, classical and dynamic light scattering, and potentiometric titration. The response of aqueous polymer solutions to various external stimuli, including changes in solution pH, electrolyte concentration, and the addition of small molecule surfactants, was investigated using surface tension and rheological measurements. Low charge density terpolymers were found to show greater viscosity enhancement upon the addition of surfactant compared to the high charge density terpolymers. The addition of sodium dodecyl sulfate (SDS) produced the largest maximum in solution viscosity, while N-dodecyl-N,N,N-trimethylammonium bromide (DTAB), N-dodecyl-N,N-dimethylammonio-1-propanesulfonate (SB3-12), and Triton X-100 tended to show reduced viscosity enhancement. In most cases, the high charge density carboxybetaine terpolymer exhibited diminished solution viscosities upon surfactant addition. In our last report, we discussed solution thermodynamic theory that described changes in polymer coil conformation as a function of solution temperature and polymer molecular weight. These polymers contained no ionic charges. In this report, we expand polymer solution theory to account for the electrostatic interactions present in solutions of charged polymers. Polymers withmore » ionic charges are referred to as polyions or polyelectrolytes.« less

Authors:
;
Publication Date:
Research Org.:
Univ of Southern Mississippi
Sponsoring Org.:
USDOE
OSTI Identifier:
902391
DOE Contract Number:  
FC26-01BC15317
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; POLYMERS; ENHANCED RECOVERY; PETROLEUM; AMIDES; COPOLYMERIZATION; VISCOSITY; ADDITIVES; PROGRESS REPORT; ELECTROSTATICS

Citation Formats

McCormick, Charles, and Hester, Roger. For Stimul-Responsive Polymers with Enhanced Efficiency in Reservoir Recovery Processes. United States: N. p., 2003. Web. doi:10.2172/902391.
McCormick, Charles, & Hester, Roger. For Stimul-Responsive Polymers with Enhanced Efficiency in Reservoir Recovery Processes. United States. doi:10.2172/902391.
McCormick, Charles, and Hester, Roger. Fri . "For Stimul-Responsive Polymers with Enhanced Efficiency in Reservoir Recovery Processes". United States. doi:10.2172/902391. https://www.osti.gov/servlets/purl/902391.
@article{osti_902391,
title = {For Stimul-Responsive Polymers with Enhanced Efficiency in Reservoir Recovery Processes},
author = {McCormick, Charles and Hester, Roger},
abstractNote = {Acrylamide-based hydrophobically modified (HM) polybetaines containing N-butylphenylacrylamide (BPAM) and varying amounts of either sulfobetaine (3-(2-acrylamido-2-methylpropanedimethylammonio)-1-propanesulfonate, AMPDAPS) or carboxybetaine (4-(2-acrylamido-2-methylpropyldimethylammonio) butanoate, AMPDAB) comonomers were synthesized via micellar copolymerization. The terpolymers were characterized via {sup 13}C NMR and UV spectroscopies, classical and dynamic light scattering, and potentiometric titration. The response of aqueous polymer solutions to various external stimuli, including changes in solution pH, electrolyte concentration, and the addition of small molecule surfactants, was investigated using surface tension and rheological measurements. Low charge density terpolymers were found to show greater viscosity enhancement upon the addition of surfactant compared to the high charge density terpolymers. The addition of sodium dodecyl sulfate (SDS) produced the largest maximum in solution viscosity, while N-dodecyl-N,N,N-trimethylammonium bromide (DTAB), N-dodecyl-N,N-dimethylammonio-1-propanesulfonate (SB3-12), and Triton X-100 tended to show reduced viscosity enhancement. In most cases, the high charge density carboxybetaine terpolymer exhibited diminished solution viscosities upon surfactant addition. In our last report, we discussed solution thermodynamic theory that described changes in polymer coil conformation as a function of solution temperature and polymer molecular weight. These polymers contained no ionic charges. In this report, we expand polymer solution theory to account for the electrostatic interactions present in solutions of charged polymers. Polymers with ionic charges are referred to as polyions or polyelectrolytes.},
doi = {10.2172/902391},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {2}
}