Vapors in the air around us can provide useful information about our environment, but we need sensitive vapor sensors to access this information, especially because those vapors are often present at very low concentrations. We report molecular dynamics simulations of a concept that can significantly increase the sensitivity of vapor sensors at low concentrations. By coating the sensor surfaces with end-anchored immiscible polymers, surface-bound polymer blends are formed that can concentrate vapors, reaching sorption enhancements of more than one order of magnitude, especially at low vapor concentrations.
- Molecular dynamics simulations
- Polymer brushes
- Vapor sensing
- Vapor solvation
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Data of Figures in the publication: Unfavorable Interactions Enhance Vapor Absorption in Mixed Polymer Brushes