In Situ Method for Determining Combination of Organic Compounds Interacting with Each Other on Silicon Oxide Surface

摘要

An experimental process for determining a combination of organic compounds, interacting with each other on a silicon oxide surface, was developed using a quartz crystal microbalance. The surface concentration of the four organic compounds, such as L-menthone (Mth), decylacetate (DA), diethylphthalate (DEP) and octanol (OCT), on a silicon oxide surface was evaluated in multi-component systems. The increase and decrease in the surface concentrations were not reversible with the changing gas phase concentrations in the two-component system consisting of Mth and DEP. Additionally, the small droplet shape of Mth placed on the DEP-coated glass plate surface was significantly different from that of DEP on theMth-coated surface. Based on these results, Mth and DEP molecules were considered to have a significant interaction with each other. (C) The Author(s) 2015. Published by ECS.