The Thin Film of a Fluorine-Containing Polymer with Cyclodextrin Prepared by the Langmuir-Blodgett Technique and Its Application to Photochromic Thin Films

Article abstract of DOI:10.1246/bcsj.66.1356

A polymer synthesized from polyallylamine by perfluoroacylation was spread on an aqueous solution of a cyclodextrin derivative possessing a carboxyl group, and a thin film of the fluorine-containing polymer to which a cyclodextrin moiety was introduced was prepared by the Langmuir-Blodgett technique.Azobenzenes were incorporated in the polymer thin film as the inclusion complex by using the aqueous solution containing both the cyclodextrin derivative and azobenzenes as a subphase, and novel photochromic thin films of fluorine-containing polymers were obtained.Characterization of these films indicated that they showed excellent low surface energy due to the perfluoroalkyl group in the polymer.The influences of the incorporated cyclodextrin moiety on the molecular arrangement, the surface energy, and the film thickness are discussed.