Z.-H. Liu's research while affiliated with East China University of Science and Technology and other places

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Publications (2)

Adsorption of surfactants onto DHBC block PE at ρs = 3.710 mmol‧L−1.
Comparison of the amounts of adsorbed surfactants on DHBC (black line)...
Comparison of the mean square radii of gyrations <Rg2> for the charged...
Four typical stages of the adsorption of the surfactants onto...
+8 Comparison of the amounts of adsorbed surfactants on homo-PE (red line)...
Effects of the hydrophilicity or hydrophobicity of the neutral block on the structural formation of a block polyelectrolyte/surfactant complex: A molecular dynamics simulation study
Article
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  • Jan 2015
The mechanism of how the neutral block in polyelectrolyte (PE) affects the interaction between PE and surfactants is investigated through coarse-grained simulations. We show that the neutral block plays profound roles on the structural formation of the PE/surfactant complex by assessing the adsorption of surfactants on a diblock or triblock PE and...
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Molecular dynamics simulation of interaction between oppositely charged alternative/random polyelectrolyte and surfactants
Article
  • Apr 2014
The interaction between alternative/random polyelectrolyte composed by charged and neutral blocks and negatively charged surfactants were studied by molecular dynamics simulations. The effects of hydrophilicity or hydrophobicity of neutral block of the alternative/random copolymer on the microstructure of the formed complex were investigated. The r...
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Citations

... Anionic surfactants can increase the rock charge density on the surface and increase the electrostatic repulsion between the oil and the rock surface. This allows oil to be easily transported by the displacement medium and thus improves the oil displacement efficiency [96]. 6. Change the rheology of oil. ...
Reference: Status and Prospect of Improved Oil Recovery Technology of High Water Cut Reservoirs
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... The increase of the surfactant concentration beyond the CAC leads to a decrease of the enthalpic contribution down to a value close to zero, i.e., the binding becomes endothermic up to reaching the isoelectric point or charge neutralization concentration (CNC). Further increases of the surfactant concentration push the system to a new endothermic region that takes the system to a situation characterized first by the saturation of all the binding sites of the polyelectrolyte chains (concentration of saturation, CS) and then by the formation of surfactant micelles free in solution, allowing to define the critical micelle concentration (CMC) [84,85]. ...
Reference: Association of oppositely charged polyelectrolyte and surfactant in solution: equilibrium and nonequilibrium features
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