Presentation Information
[1P48]Effect of substrate surface treatment on molecular adsorption and desorption behavior at organic solvent–solid interfaces
*Ryo Kikuchi1, Tomoko Hirayama2, Hiroshi Onishi3, Ryugo Tero1 (1. Toyohashi University of Technology , 2. Kyoto University, 3. Kobe University, Institute for Molecular Science)
Summary.
This study investigates how substrate surface hydrophilicity influences the adsorption and desorption behaviors of molecules at the interface between glass and a non-polar lubricant using fluorescence single-molecule microscopy. Using hexadecane as a model base oil and palmitic acid as an additive, the time-dependent behavior of fluorescent probe molecules was analyzed. The results revealed that palmitic acid enhances the exchange dynamics of molecules at the interface by disrupting the molecular orientation of the base oil layer. These findings contribute to understanding the interfacial molecular mechanisms in lubricants, offering insights for the design of more efficient lubrication systems.
This study investigates how substrate surface hydrophilicity influences the adsorption and desorption behaviors of molecules at the interface between glass and a non-polar lubricant using fluorescence single-molecule microscopy. Using hexadecane as a model base oil and palmitic acid as an additive, the time-dependent behavior of fluorescent probe molecules was analyzed. The results revealed that palmitic acid enhances the exchange dynamics of molecules at the interface by disrupting the molecular orientation of the base oil layer. These findings contribute to understanding the interfacial molecular mechanisms in lubricants, offering insights for the design of more efficient lubrication systems.