摘要:
A highly dense chemically adsorbed film is formed by repeating the alternate process of adsorption reaction and washing. Adsorption reaction is directed by contacting the substrate surface, which has or is given an alkali metal or a functional group, with a chemical adsorbent, having halosilyl or alkoxysilyl groups at the end of molecules. An unreacted chemical adsorbent is then washed away from the substrate surface. The alternate treatment of adsorption reaction and washing is repeated, thereby covalently bonding a chemically adsorbed film to the substrate surface. As a result, a chemically adsorbed film is formed in which stem molecules are directly or indirectly covalently bonded to the substrate surface via at least one element chosen from the group consisting of Si, Ge, Sn, Ti, Zr, S or C and graft molecules are covalently bonded to at least one element chosen from Si, Ge, Sn, Ti, Zr, S or C via at least one bond chosen from —SiO—, —GeO—, SnO—, —TiO—, ZrO—, —SO2—, —SO— and —C—.
摘要:
A chemically adsorbed multilayer film is formed through the process of replacing a halogen atom on the surface of a chemically adsorbed film with an alkaline metal or changing the halogen atom to a Grignard group by Grignard reaction. This manufacturing method does not disrupt the molecules of the chemically adsorbed film, is easy to perform, low in cost and is safe. After replacing the halogen (for example, Br) on the surface of the film with an alkaline metal such as Li, a condensation reaction including a dealkalihalide reaction is promoted by contacting the chemically adsorbed film with an adsorbent, such as a chemical adsorbent--containing a halosilane group at one end of a molecule--dissolved in a nonaqueous solvent. A chemically adsorbed multilayer film is then formed by reacting the chemically adsorbed film with chemical absorption composition and with water after removing unreacted adsorbents using a nonaqueous solution.
摘要:
A highly dense chemically adsorbed film is formed by repeating the alternate process of adsorption reaction and washing. Adsorption reaction is directed by contacting the substrate surface, which has or is given an alkali metal or a functional group, with a chemical adsorbent, having halosilyl or alkoxysilyl groups at the end of molecules. An unreacted chemical adsorbent is then washed away from the substrate surface. The alternate treatment of adsorption reaction and washing is repeated, thereby covalently bonding a chemically adsorbed film to the substrate surface. As a result, a chemically adsorbed film is formed in which stem molecules are directly or indirectly covalently bonded to the substrate surface via at least one element chosen from the group consisting of Si, Ge, Sn, Ti, Zr, S or C and graft molecules are covalently bonded to at least one element chosen from Si, Ge, Sn, Ti, Zr, S or C via at least one bond chosen from —SiO—, —GeO—, SnO—, —TiO—, ZrO—, —SO2—, —SO— and —C—.
摘要:
According to the invention, the surface of a substrate possessing an active hydrogen group is contacted with a chemical adsorbent containing a radical generation precursor group or metal ion capturing group within a molecule--also possessing a reactive functional group such as halosilyl or alkoxy silyl at its end--to form a chemical adsorption film by removing the unreacted chemical adsorbent, radicals are then generated and magnetism is expressed on the chemical adsorption film.
摘要:
A chemically adsorbed monomolecular or a laminated monomolecular film comprising a monomolecular film formed on said substrate surface by covalent S-bonds is disclosed. For example, the covalent S-bond is selected of a group consisting of --(S.dbd.O)-- and --(O.dbd.S.dbd.O)--. A method of producing a chemical adsorption film comprising; contacting a substrate containing hydroxl groups present on the surface with a non-aqueous solvent containing a material having a thionyl halide group or sulfuryl haloride group; removing unreacted surface active material remaining on the substrate by washing the substrate with a non-aqueous organic solution for making monomolecular a precursor film; reacting unreacted surface active material remaining on the adsorbed monomolecular precursor film with water; and drying the adsorbed monomolecular film is also disclosed. Further, a method of producing a laminated chemical adsorption film comprising laminating a monomolecular adsorption film by repeating the above steps is disclosed.
摘要:
A highly dense chemically adsorbed film is formed by repeating the alternate process of adsorption reaction and washing. Adsorption reaction is directed by contacting the substrate surface, which has or is given an alkali metal or a functional group, with a chemical adsorbent, having halosilyl or alkoxysilyl groups at the end of molecules. An unreacted chemical adsorbent is then washed away from the substrate surface. The alternate treatment of adsorption reaction and washing is repeated, thereby covalently bonding a chemically adsorbed film to the substrate surface. As a result, a chemically adsorbed film is formed in which stem molecules are directly or indirectly covalently bonded to the substrate surface via at least one element chosen from the group consisting of Si, Ge, Sn, Ti, Zr, S or C and graft molecules are covalently bonded to at least one element chosen from Si, Ge, Sn, Ti, Zr, S or C via at least one bond chosen from —SiO—, —GeO—, SnO—, —TiO—, ZrO—, —SO2—, —SO— and —C—.
摘要:
The invention relates to a hydrophilic thin film and a method of manufacturing the same in which the hydrophilic thin film is formed by incorporating or fixing molecules comprising hydrophilic groups to a chemically adsorbed film on a substrate surface.
摘要:
An information recording layer on a substrate provides a method of recording information by selectively opening the rings of dicyclopentadiene skeletons, thus recording information by forming cyclopentadiene skeletons. The information recorded by the method can be erased by the cycloaddition of cyclopentadiene skeletons. Information can also be recorded or erased by incorporating or eliminating a metal ion from a selectively opened section of a ring of a dicyclopentadiene skeleton after forming an organic thin film comprising the dicyclopentadiene skeleton. Alternatively, after the formation of an organic thin film comprising a cyclopentadiene skeleton, a heterocycle or a benzene ring, a metal ion is incorporated or eliminated from a section between at least two rings of the cyclopentadiene skeleton, the heterocycle or the benzene ring. Thereafter, a metallocene skeleton or a skeleton analogous to the metallocene skeleton is formed or eliminated, thus recording or erasing information. The selective opening of a section of a dicyclopentadiene skeleton ring is carried out by heat or light. The readout of the information is performed by recognizing the cyclopentadiene skeleton, the metallocene skeleton, the skeleton analogous to the metallocene skeleton or the metal atom. The information recording layer of the invention is a chemically adsorbed monomolecular film with a thickness at the angstrom level.
摘要:
An information recording layer on a substrate provides a method of recording information by selectively opening the rings of dicyclopentadiene skeletons, thus recording information by forming cyclopentadiene skeletons. The information recorded by the method can be erased by the cycloaddition of cyclopentadiene skeletons. Information can also be recorded or erased by incorporating or eliminating a metal ion from a selectively opened section of a ring of a dicyclopentadiene skeleton after forming an organic thin film comprising the dicyclopentadiene skeleton. Alternatively, after the formation of an organic thin film comprising a cyclopentadiene skeleton, a heterocycle or a benzene ring, a metal ion is incorporated or eliminated from a section between at least two rings of the cyclopentadiene skeleton, the heterocycle or the benzene ring. Thereafter, a metallocene skeleton or a skeleton analogous to the metallocene skeleton is formed or eliminated, thus recording or erasing information. The selective opening of a section of a dicyclopentadiene skeleton ring is carried out by heat or light. The readout of the information is performed by recognizing the cyclopentadiene skeleton, the metallocene skeleton, the skeleton analogous to the metallocene skeleton or the metal atom. The information recording layer of the invention is a chemically adsorbed monomolecular film with a thickness at the angstrom level.
摘要:
An information recording layer on a substrate provides a method of recording information by selectively opening the rings of dicyclopentadiene skeletons, thus recording information by forming cyclopentadiene skeletons. The information recorded by the method can be erased by the cycloaddition of cyclopentadiene skeletons. Information can also be recorded or erased by incorporating or eliminating a metal ion from a selectively opened section of a ring of a dicyclopentadiene skeleton after forming an organic thin film comprising the dicyclopentadiene skeleton. Alternatively, after the formation of an organic thin film comprising a cyclopentadiene skeleton, a heterocycle or a benzene ring, a metal ion is incorporated or eliminated from a section between at least two rings of the cyclopentadiene skeleton, the heterocycle or the benzene ring. Thereafter, a metallocene skeleton or a skeleton analogous to the metallocene skeleton is formed or eliminated, thus recording or erasing information. The selective opening of a section of a dicyclopentadiene skeleton ring is carried out by heat or light. The readout of the information is performed by recognizing the cyclopentadiene skeleton, the metallocene skeleton, the skeleton analogous to the metallocene skeleton or the metal atom. The information recording layer of the invention is a chemically adsorbed monomolecular film with a thickness at the angstrom