Quantitative evaluation of molecular orientation in thinLangmuir-Blodgett films by FTIR spectroscopy and its application to the study ofstructure-function relationship,

摘要

Abstract: A method for quantitative evaluation of the molecular orientation in thin Langmuir-Blodgett (LB) films by FT-IR transmission and reflection-absorption (RA) spectroscopy is presented and applied to the study of the 11-monolayer LB film of barium salt of an azobenzene-containing long-chain fatty acid. This was also applied to the study of temperature dependence of the molecular orientation in alternate LB films consisting of a phenylpyrazine-containing long-chain fatty acid and deuterated stearic acid as well as in those consisting of their barium salts. At the same time, pyroelectricities of these films were measured in the temperature range from $MIN@30 to 60$DGR@C, and the results were discussed in connection with changes in the molecular structure and orientation. !8