Mesostructured film, mesoporous material film, and production methods for the same
A mesostructured film is provided having a structure in which surfactant molecular assemblies are regularly arranged three-dimensionally. A polymer compound thin film is formed on the substrate surface through spin coating or the like, and a rotating roller wrapped with a cloth is pressed against the polymer film for rubbing in one direction. The polymer material includes polyimide, polyamide, and polystyrene. The substrate includes a silica glass substrate and a silicon substrate. The mesostructured film can be formed by retaining the substrate in an aqueous solution containing a surfactant, silicon alkoxide, and acid. After being retained in the solution, the substrate is heated at about 60 to 120° C. for several hours to several days for reaction. The surfactant includes C 18 H 37 (OCH 2 CH 2 ) 20 OH and C 16 H 33 (OCH 2 CH 2 ) 20 OH. The alkoxide included tetraethoxysilane, tetramethoxysilane, and tetrapropoxysilane. Hydrochloric acid, nitric acid, or sulfuric acid is used as a catalyst.
1. A mesostructured film comprising amphiphilic molecular assemblies and a compound containing as a main component silica formed on the peripheries of the molecular assemblies regularly arranged three-dimensionally, the mesostructured film being formed on a substrate, wherein:
a local periodic structure in a section in parallel with the substrate of the film has a 6-fold axis perpendicular to a film plane; and
symmetric reflective surfaces of the structure including the 6-fold axis are facing in the same direction across the entire film.
2. A mesostructured film according to claim 1 , wherein the amphiphilic molecular assemblies comprise surfactant micelles containing two or more nonionic surfactants of different molecular length.
3. A mesostructured film according to claim 2 , wherein the two or more nonionic surfactants of different molecular length comprise nonionic surfactants containing polyethylene oxide as a hydrophilic group.
4. A mesostructured film according to claim 3 , wherein the two or more nonionic surfactants of different molecular length respectively have identical hydrophobic portions and hydrophilic polyethylene oxide portions different in molecular chain length.
5. X-ray optical device comprising the mesostructured film according to claim 1 .
6. mesostructured film according to claim 1 having mesopores which are spherical.
7. A mesoporous material film comprising holes regularly arranged three-dimensionally and silica as a main component, the mesoporous material film being formed on a substrate, wherein:
a local periodic structure in a section of the film in parallel with the substrate has a 6-fold axis perpendicular to a film plane; and
symmetric reflective surfaces of the structure including the 6-fold axis are facing in the same direction across the entire film.
8. A mesoporous material film according to claim 7 , wherein the holes are spherical mesopores.
9. A structure comprising spherical assemblies of amphiphilic molecules and a compound containing silica formed on the peripheries of the assemblies, wherein:
the amphiphilic molecular assemblies are regularly arranged across an entire area of the structure; and
the arrangement of the amphiphilic molecular assemblies has a 6-fold axis.
10. A structure according to claim 9 , wherein the spherical assemblies are spherical mesopores.
11. A mesostructured film comprising: amphiphilic molecular assemblies arranged three-dimensionally in the mesostructured film on a substrate, wherein a local structure of the film has a 6-fold symmetry axis perpendicular to the film plane, and planes of mirror symmetry containing the symmetry axis are substantially parallel throughout the film.
12. A mesostructured film according to claim 11 , wherein the amphiphilic molecular assemblies are spherical mesopores.
13. A mesostructured film having mesopores,
wherein a local structure of the film has a 6-fold symmetry axis perpendicular to the film plane, and planes of mirror symmetry containing the symmetry axis are parallel throughout the film.
14. A mesostructured film according to claim 13 , wherein the mesopores are spherical.