抄録
Novel optical surface-visualization technique has been applied to aqueous solution systems of 1-pentanol and four structural isomers for investigating relations between molecular structures of alcohols and mechanical stabilities of their aqueous solution surfaces. Experiments have been carried out systematically under condition of various alcohol concentrations up to their solubilities with several sets of surface temperature gradients imposed just on the solution surfaces. Results of the analysis show that aqueous solution systems of alcohols which involve hydroxyl groups or methyl groups on appropriate positions in the molecules, such as 3-pentanol or 2-methyl-1-butanol, have relatively small instabilities of adsorption and large potentials for inducing strong surface disturbances at the solution surfaces.
