Abstract: The present invention concerns the fields of processes for producing an organic ultrathin film having polyacetylene linkages and the resultant films. In one embodiment the process for producing the film consists of the steps forming an acetylene monomolecular film on a water surface, applying magnetic or electric field to enhance orientation, irradiating the acetylene film with an energy beam to polymerize the acetylene film into a polyacetylene film. Other embodiments for producing the film consists of the steps of forming an acetylene film by chemical absorption, applying magnetic or electric field, and irradiating the film with an energy beam. The polymerized film is useful as an electrical material having high conductivity and as an optical material having non-linear effect.

Abstract: A responsive film containing a responsible group occuring a chemical reaction by energy beam is formed on an insulated substrate, and energy beam is irradiated in a pattern, and part of the responsive group is selectively deactivated or activated, and only the remaining portion of the responsive group of the responsive film is coupled with a chemical substance containing metal in a later process, and an ultrafine pattern of metal film is formed.

Abstract: The present invention concerns a field of dealing with inorganic fine particles, and provides a mass of the inorganic fine particles and method of producing the mass, and as applications of the method, an ultrathin film of inorganic fine particles and method of producing the ultrathin film, a magnetic recording medium and method of manufacturing the medium, and a method of manufacturing an inorganic pattern and method of manufacturing a inorganic wiring. Furthermore, the present invention provides the magnetic recording medium by convering the inorganic fine particles with a monomolecular film of a silane type surface active agent through chemical adsorption and permitting the inorganic fine particles and the monomolecular film to have functions.

Abstract: The method of the present invention for forming a monomolecular membrane on a substrate comprises the steps of(1) mixing(a) at least one substance having a water-soluble polar head (hydrophilic portion) and a water-insoluble organic tail (hydrophobic portion) in the molecule, the head being ionizable into a cation when spread on water, and(b) at least one substance having a water-soluble polar head (hydrophilic portion) and a water-insoluble organic tail (hydrophobic portion) in the molecule, the head being ionizable into an anion when spread on water, to obtain a mixture,(2) developing the mixture on an aqueous subphase to form a monomolecular layer, and(3) transferring the monomolecular layer to a substrate while applying a surface pressure to the layer.According to the present invention, there can be formed a unidimensionally controlled membrane which develops a higher function than do the conventional two-dimensionally controlled membranes.

Abstract: The present invention relates to an electric material, and particularly it relates to an organic substance having a polyacetylene linkage which exhibits electrical conductivity and nonlinear optical effect.More particularly, the present invention provides a process for producing an organic substance having a polyacetylene linkage which can be utilized, for example, as an electric material, said process comprising immersing a substrate having a hydrophilic surface in a solution of a substance containing an acetylene (--C.tbd.C--) group and a chlorosilane (--SiCl.sub.3) group dissolved in a nonaqueous organic solvent, thereby subjecting the substance containing an acetylene group and a chlorosilane group to chemical adsorption on the surface of the substrate, subjecting said substance to polymerization reaction by the use of radiation such as X-rays, electron beams, .gamma.-rays, or the like, and thereby producing a polyacetylene.