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

Article type: Research Article

Authors: Misawa, M. | Dairoku, I. | Honma, A. | Yamada, Y. | Sato, T. | Maruyama, K. | Mori, K.^; | Suzuki, S. | Otomo, T.

Affiliations: Department of Chemistry, Faculty of Science, Niigata University, Niigata 950-2181, Japan | Neutron Science Laboratory, Institute of Materials Structure Science, KEK, Tsukuba 305-0801, Japan | Research Reactor Institute, Kyoto University, Osaka 590-2181, Japan

Note: [] Corresponding author. E-mail: misawa@chem.sc.niigata-u.ac.jp

Abstract: 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.

Keywords: Neutron small angle scattering, Aqueous solution, Mesoscale structure, Fractal dimension, Reverse Monte Carlo analysis, Structure visualization

DOI: 10.1080/10238160412331297872

Journal: Journal of Neutron Research, vol. 13, no. 1-3, pp. 91-95, 2005