Observation of Mesoscale Structure of 1-propanol Aqueous Solution and its Visualization

Absolute intensity of small angle neutron scattering (SANS) has been measured for 1-propanol aqueous solution. Fractal dimension evaluated from the observed intensity depends on 1-propanol content in a peculiar way. Mesoscale structure of the solution has been visualized by means of large-scale reverse Monte Carlo (RMC) technique. It is suggested that most molecules are located on surface of clusters and cluster-size distribution obeys a simple power law.