Study of polyacrylamide-surfactant system on the water–oil
Study of polyacrylamide-surfactant system on the water–oil interface properties and rheological properties for EOR. The viscosity decreases with increment of salinity due to the interactions between ions of electrolyte solution and ions of polymer chains. Flow behavior and rheological curves show the shear thinning behavior.
The interactions of oppositely charged polyelectrolyte and surfactant (anionic polyacrylamide AD37 and dodecylpyridinium chloride DPC, respectively) in aqueous solution were studied at 25 °C by
Molecular interactions in a surfactant-water
Molecular interactions in a surfactant-water-polyacrylamide system, according to densimetry, viscometry, conductometry, and spectroscopy data Article in Russian Journal of Physical Chemistry 87(8
Interactions of Polyacrylamide with Cationic Surfactants: Thermodynamic and Surface Parameters (CPC), in different concentrations of water‐soluble polyacrylamide has been studied in alkaline medium by electrical conductivity and surface tension measurements. A decrease in the critical micelle concentration (CMC) of the surfactant with an
Interactions of Polyacrylamide with Cationic Surfactants
Luo I, Wang D-X, Zhang L, Zhao S, Yu J-Y (2007) Interactions between hydrophobically modified associating polyacrylamide and cationic surfactant at the water–octane interface: interfacial dilational viscoelasticity and relaxation processes. J Dispersion Sci Techol 28:263–269 CrossRef
Two different molecular weights of polyacrylamide (PAM) [PS-19901=7×10 5 M w, PS-02806=5×10 6 M w] were obtained from Polysciences Inc. Commercial grade Triton X-100 (TX-100) was used as a nonionic surfactant, obtained from Union Carbide, Thailand Ltd. Each material was used without further purification.
Polymer-Surfactant Interaction
Feb 16th 2006 Polymer-Surfactant Interaction Conclusions As a general trend, the presence of polymers reduces the cmc concentration for the surfactant especially if the polymer has an opposite charge compared to the surfactant. The combination of surfactant and polymers improve the desired properties of the product (surfactants are usually added to control
Feb 16th 2006 Polymer-Surfactant Interaction Conclusions As a general trend, the presence of polymers reduces the cmc concentration for the surfactant especially if the polymer has an opposite charge compared to the surfactant. The combination of surfactant and polymers improve the desired properties of the product (surfactants are usually added to control
Intermolecular Interactions in Polyelectrolyte
Polyelectrolytes are an important class of polymeric materials and are increasingly used in complex industrial formulations. A core use of these materials is in mixtures with surfactants, where a combination of hydrophobic and electrostatic interactions drives unique solution behavior and structure formation. In this review, we apply a molecular level perspective to the broad literature on
Measurements with and without oil (n-octane) were made across a range of salinity appropriate to the particular surfactant at temperatures between 24 and 75° C. The polymers used were xanthan gum, hydrolyzed polyacrylamide, polyacrylamide, hydroxyethylcellulose, and polyethyleneoxide of three different molecular weights.
Study on the interaction between the cationic surfactant
Interactions between a cationic surfactant, cetyltrimethyl ammonium bromide ( CTAB) and a water- soluble polymer polyvinyl alcohol (PVA) were investigated by means of viscosity, electric conductance, surface tension and ultraviolet spectra (UV) . Results show
Properties of hydrophobically modified polyacrylamide with low molecular weight and interaction with surfactant in aqueous solution.
- What is polyacrylamide (PAM) used for?
- npj Clean Water 1, Article number: 17 ( 2018 ) Cite this article High molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
- What is high molecular weight polyacrylamide (PAM)?
- Provided by the Springer Nature SharedIt content-sharing initiative High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
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- What is the molecular weight of Pam?
- The molecular weight (MW) of commercial PAM ranges from 10 5 to >10 7 Da. High MW PAM (>10 6 Da) has a wider range of applications due to its high viscosity, drag reduction capabilities, and water retention characteristics. 6, 7, 8 PAM is widely used in environmental systems including: 1. 2. 3.
