Polymer Brush Bilayer Under Stationary Shear- A Joint DFT, Scaling Theory and MD Study

Mike John Edwards (Majid Farzin)
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Mike John Edwards (Majid Farzin): Independent research Physicist, Germany

Biomedical Journal of Scientific & Technical Research, 2023, vol. 54, issue 1, 45485-45492

Abstract: The problem of polymer brush bilayer under stationary shear is studied by using the DFT, the scaling theory and MD simulations. Both theory and simulations confirm that the shear stress follows the universal power law γ1.46 for the brush bilayers with in- terpenetration and in the absence of the interpenetration, the shear stress scales linearly with the shear rate. It is also revealed that the presence of explicit solvent molecules prevents the brushes to form an interpenetration zone, therefore with explicit solvents the shear stress scales linearly with shear rate.

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Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:abf:journl:v:54:y:2023:i:1:p:45485-45492

DOI: 10.26717/BJSTR.2023.54.008506

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