Abstract: The present invention provides an optical oxygen concentration measurement method and optical oxygen concentration measuring sensor wherein a light-absorbing dye-molecule layer whose absorption spectrum varies depending on the bonding with oxygen molecules is combined with a light-emitting layer, and the oxygen concentration of the ambient fluid can be measured. The light-absorbing layer 4 laminated to an oxygen-quenching light-emitting layer 3 is a film comprising a cobalt-porphyrin complex (CoP) or other light-absorbing dye molecule 7 whose absorption spectrum varies depending on the bonding with oxygen molecules. When the degree of overlap with the light emission spectrum or excitation (absorption) spectrum of the light-emitting layer 3 varies as a result of a variation in the absorption spectrum possessed by the light-absorbing layer 4, the light intensity of output light varies in accordance with the degree of overlap, and the oxygen concentration of the ambient fluid can be measured.

Abstract: An oxygen-quenching luminophore constituting part of a pressure-sensitive luminophore is directly bonded by a covalent bond to an organic polymer compound having trimethylsilyl groups, so the luminophore molecules are retained in the polymer and free aggregation is inhibited when the organic solvent is evaporated. It is therefore possible to prevent light response from being reduced by the aggregation of the luminophore molecules during evaporation of the organic solvent, which is a drawback of forming films from conventional mixed-type pressure-sensitive paints. A thin-film sensor with uniform characteristics can be formed by spraying or application from a pressure-sensitive paint obtained by mixing a functional polymer with a solvent. In addition, a coating solution that has high reproducibility and is suitable for spraying or application can be obtained merely by dissolving the functional polymer as a single component in a suitable solvent.

Abstract: A porphyrin metal complex-albumin inclusion compound wherein a substituted porphyrin metal complex comprising, as a central, coordinated metal, a transitional metal belonging to the fourth or fifth period of the periodic law, is included in the albumin, and an oxygen carrier composition comprising said inclusion compound as an active ingredient. The compound functions as an oxygen carrier which is superior in biocompatibility, capable of adsorption and desorption of oxygen under physiological conditions, and is rather easily produced at an industrial scale.

Abstract: Oxygen-separating porous membranes comprise a complex of (a) a transition metal (II) ion, (b) a ligand, and (c) an aromatic amine, retained in the pores of a substrate.

Abstract: A process for preparing a polyarylene thioether, comprising oxidation coupling polymerizing with oxygen and a catalyst in the presence of an acid, at least one compound selected from the group consisting of thiophenols of the formula (II): ##STR1## wherein R.sup.9 to R.sup.12 are identical or different and each is hydrogen, alkyl having 1 to 10 carbon atoms, halogen or alkoxyl having 1 to 10 carbon atoms. Reaction conditions of the process are very mild, and the process is relatively simple and easy. In addition, the process is commercially advantageous in that very inexpensive reactants and catalysts can be used.

Abstract: Polyarylene thioether is easily prepared by oxidative polymerizing an aromatic compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group, and Y is a hydrogen atom or a group of the formula: ##STR2## wherein R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are independently a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group and X is --O--, --S--, a methylene group or an ethylene group with a sulfidizing agent in the presence of an acid and an oxidizing agent, or in the presence of an acid, a catalyst for oxidative polymerization and oxygen, or in the presence of a Friedel-Crafts catalyst.

Abstract: Oxygen-permeable polymeric membranes, intended for use in processes for producing oxygen- or nitrogen-enriched air for industrial, medical, and other applications, are characterized by a complex which comprises (a) a copolymer of a vinyl aromatic amine and either (i) a fluoroalkyl acrylate or (ii) a fluoroalkyl methacrylate, and (b) a ligand taken from the group consisting of (1) porphyrins, (2) Schiff bases, (3) cyclidenes, and (4) amine-like macrocycles, and (c) a transition metal (II) ion.

Abstract: The present invention relates to a porphyrin metal complex represented by the formula (1): ##STR1## wherein R is a pivaloyloxy group, M is a transition metal ion of the group IV and the group V metals, X is a halogen ion, and n is 0 or 1.The above compound is used as a more stable artificial oxygen carrier capable of preventing the behavior of oxidation and deterioration.

Abstract: The present invention relates to a micromolecular endoplasmic reticulum which comprises a polymer obtained by polymerization of a mixture containing one or more polymerizable phospholipids, cholesterol and one or more polymerizable fatty acid. The macromolecular endoplasmic reticulum in which surface charge is fixed to negative can be used as a carrier of medicine, enzyme, hemoglobin, etc. in industrial fields or medical fields.

Abstract: A process for preparing a polyarylene thioether, comprising oxidation polymerizing at least one compound selected from the group consisting of diaryl disulfides represented by the formula (I): ##STR1## wherein, S is a sulfur atom, R.sup.1 to R.sup.8 are identical or different and each is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a halogen atom or an alkoxyl group having 1 to 10 carbon atoms, with at least one catalyst selected from the group consisting of vanadyl acetylacetonato, vanadyltetraphenyl porphyrin, vanadium acetylacetonato, vanadyl porphyrin, vanadium porphyrin, oxymolybdenum acetylacetonato and oxytungsten acetylacetonato, in the presence of an acid. Reaction conditions of the process are very mild, and the process is relatively simple and easy. In addition, the process is commercially advantageous in that very inexpensive reactants and catalysts can be used.

Abstract: Oxygen-permeable polymeric complexes comprise (a) a transition metal (II) ion, (b) a liqand of meso-tris(.alpha., .alpha.,.alpha.-o-substituted-amidophenyl)-mono-(.beta.-o-substituted amidophenyl) porphyrinato, and (c) an aromatic amine polymer.

Abstract: A process for preparing polyarylene thioethers wherein thiophenols of formula ##STR1## are electrolytically polymerized in the presence of a Lewis acid and/or a proton acid.

Abstract: A process for preparing a substantially straight-chain polyarylene thioether by polymerizing a diphenyldisulfide of the formula ##STR1## in the presence of a lewis acid catalyst at temperatures of between -20.degree. C. and 50.degree. C.

Abstract: A method for separating a charge transfer interactive substance from a liquid mixture containing such a substance, wherein the separation is conducted by means of a separating membrane made of a copolymer having charge transfer interactive groups.