title: Molecular interactions behind the synergistic effect in mixed monolayers of 1-octadecanol and ethylene glycol monooctadecyl ether.
abstract: Mixed monolayers of 1-octadecanol (C18OH) and ethylene glycol monooctadecyl ether (C18E1) were studied to assess their evaporation suppressing performance. An unexpected increase in performance and stability was found around the 0.5:0.5 bicomponent mixture and has been ascribed to a synergistic effect of the monolayers. Molecular dynamics simulations have attributed this to an additional hydrogen bonding interaction between the monolayer and water, due to the exposed ether oxygen of C18E1 in the mixed system compared to the same ether oxygen in the pure C18E1 system. This interaction is maximized around the 0.5:0.5 ratio due to the particular interfacial geometry associated with this mixture.
authors.affiliation: Department of Chemical and Biomolecular Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.
authors.forename: Diana N H
authors.initials: DN
authors.lastname: Tran
authors.forename: Emma L
authors.initials: EL
authors.lastname: Prime
authors.forename: Michael
authors.initials: M
authors.lastname: Plazzer
authors.forename: Andy H M
authors.initials: AH
authors.lastname: Leung
authors.forename: George
authors.initials: G
authors.lastname: Yiapanis
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Christofferson
authors.forename: Irene
authors.initials: I
authors.lastname: Yarovsky
authors.forename: Greg G
authors.initials: GG
authors.lastname: Qiao
authors.forename: David H
authors.initials: DH
authors.lastname: Solomon
mesh_terms: D000388:Air; D019855:Ethylene Glycol / Q000737:chemistry*; D005026:Ethylene Glycols / Q000737:chemistry*; D005233:Fatty Alcohols / Q000737:chemistry*; D006860:Hydrogen Bonding; D056004:Molecular Dynamics Simulation; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D005026:Ethylene Glycols; D005233:Fatty Alcohols; C510523:diethylene glycol mono-n-octadecyl ether; D014867:Water; C009316:stearyl alcohol; D019855:Ethylene Glycol