Abstract
Construction and characterization of molecular organizations are summarized. Copolymer consisting of anionic block and perfluorinated block forms micelle, and its size is decreased in addition of HCl or NaCl, different from the case of low-molecular-weight ionic amphiphiles. Amphiphiles with chirality or functional groups for the intermolecular interaction form fibers, but the structures differ from each other. In some cases, such fibers present liquid crystal phase. Photocyclodimerization proceeding in the molecular assemblies is most reactive in vesicle. The stereochemical selectivity of the product depends on not only the assembly structure but also the binding of reaction molecules on assemblies. Metal nanoparticles constructed under the presence of protection agent display two-dimensional array on the substrate with interdigitated monolayer or bilayer arrangement of alkyl chains protecting nanoparticles. Water-soluble nanoparticles are prepared in the presence of dendrimers as protection agent. Hydrocarbon amphiphiles with analogous chemical structures are mixed in two-dimensional Langmuir-Blodgett films but dye surfactant is phase-separated from the micro domain of arachidic acid. While the mixtures of hydrocarbon and fluorocarbon amphiphiles always form the separated domains, the mixing of two fluorocarbon amphiphiles depends on the fluorocarbon chain length. Various types of intersurface interactions are observed on the surfaces adsorbed amphiphiles and dendrimer. Those are electrostatic repulsion, hydrophobic interaction, adhesion, solvation, and steric repulsion forces.
