AI Article Synopsis
- The study examined how a specific compound (C5Pe) interacts with asphaltene deposits on different types of polymer brushes.
- Zwitterionic brushes (PMAPS) and hydrophobic brushes (PHMA) showed reduced C5Pe adsorption compared to a traditional polymer (PMMA).
- The detachment of asphaltene films occurred differently based on the brush type, with PHMA releasing them in a model oil and PMAPS releasing them in water, linking this behavior to the interface free energy between the materials.
Article Abstract
The adsorption behavior of a model compound for surface-active component of asphaltenes, N-(1-hexylheptyl)-N'-(12-carboxylicdodecyl) perylene-3,4,9,10-tetracarboxylic bisimide (C5Pe), and detachment behavior of asphaltene deposit films for high-density polymer brushes were investigated. Zwitterionic poly(3-(N-2-methacryloyloxyethyl-N,N-dimethyl)ammonatopropanesulfonate (PMAPS) brushes and hydrophobic poly(n-hexyl methacrylate) (PHMA) brushes exhibit less C5Pe adsorption than poly(methyl methacrylate) (PMMA). The asphaltene deposit films on the PHMA brush detached in a model oil (toluene/n-heptane=1/4 (v/v)), and the asphaltene films on the PMAPS brush detached in water. The antifouling character was explained by the interface free energy for the polymer-brush/asphaltenes (γSA) and polymer-brush/toluene (γSO).
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| http://dx.doi.org/10.1021/am505904b | DOI Listing |
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