Physical Chemistry of the Formation of Inhomogeneous Structures in Soft Interfacial Films Caused by Ion Interactions in Electrical Double Layer

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K17858
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Kyushu University
• Principal Investigator: Yosuke Imai 九州大学, 基幹教育院, 助教 (90738816)
• Research Collaborator: TANIDA Hajime
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: ソフト界面 / 吸着膜ドメイン / 全反射XAFS法

Outline of Final Research Achievements

(1) Counterion binding in adsorbed surfactant films at oil/water interfaces was evaluated by total reflection X-ray absorption fine structure spectroscopy, (2) Phase transition between low density and high density of films and domain formation were observed in adsorbed films of 1-decanol at air/water interfaces, (3) The relation between counterion binding and molecular interaction in the adsorbed films of tetradecyltrimethylammonium bromide and tetradecylphosphocholine mixtures. These results contribute further researches to clarify the effects of ion interactions in the electrical double layer on domain formation in soft interfacial films.

Free Research Field

界面物理化学