METHOD FOR PLATING MOLDED BODY OF POLYVINYLIDENE CHLORIDE WITH METAL

    公开(公告)号:JPS62207876A

    公开(公告)日:1987-09-12

    申请号:JP5204686

    申请日:1986-03-10

    Abstract: PURPOSE:To form a metallic film having superior adhesion on a molded body of polyvinylidene chloride by chemical plating by etching the surface of the molded body, treating it with palladium hyudrosol contg. a cationic surfactant and carrying out chemical plating. CONSTITUTION:A molded body of polyvinylidene chloride is immersed in an aqueous soln. of an alkali metallic hydroxide such as NaOH to etch the surface of the molded body. The molded body is then immersed in palladium hydrosol contg. a cationic surfactant such as a quat. ammonium salt type surfactant to stick palladium colloid to the surface of the molded body and the molded body is chemically plated with a metal such as Ni, Co, Cu or Ag. By this method, a metallic film having superior adhesion can be formed on the surface of the molded body by chemical plating with high reproducibility.

    PRODUCTION OF THERMOREVERSIBLE HIGH-MOLECULAR CROSSLINKED MOLDING

    公开(公告)号:JPS61287931A

    公开(公告)日:1986-12-18

    申请号:JP13223286

    申请日:1986-06-07

    Abstract: PURPOSE:To produce a crosslinked molding having thermoplasticity, being insoluble in water and being capable of retaining its shape, by radical- polymerizing a specified acrylamide derivative and an N-methylolacrylamide and molding and crosslinking the polymer. CONSTITUTION:1mol of a compound of the formula is mixed with 1mol or below of an N-methylolacrylamide, and the mixture is radical-polymerized in a state of solution. The obtained copolymer is molded and then crosslinked by heating. In the formula, R1 is H or methyl and R2 is n-propyl or isopropyl. To copolymerize a compound of the formula with N-methylolacrylamide, it is necessary to perform the copolymerization in a solvent in which the monomers can be dissolved homogeneously. Examples of such solvents include water, alcohols and N,N-diethylacetamide. In order to give a NW suitable for processing into a molding to this copolymer, it is preferable to produce it so that it has an intrinsic viscosity [eta], as measured in, for example, a methanol solution at 30 deg.C, of about 0.01-6.0.

    THIOPHENE POLYMER AND PRODUCTION THEREOF

    公开(公告)号:JPS61209224A

    公开(公告)日:1986-09-17

    申请号:JP4681885

    申请日:1985-03-09

    Abstract: PURPOSE:To produce novel poly-[2,5-(3-ethylthienylene)] useful as electronic devices, polymeric materials, optical materials, etc., by carrying out the electrolytic polymerization of 3-ethylthiophene, and subjecting the product to electrolytic reduction. CONSTITUTION:3-Ethylthiophene is subjected to the electrolytic polymerization in a solvent (e.g. propylene carbonate, etc.) containing supporting electrolyte (e.g. hexafluorophosphoric acid ion) and the product is subjected to the electrolytic reduction to obtain the objective polymer.

    PRODUCTION OF NOVEL CROSSLINKABLE THERMOREVERSIBLE POLYMER COMPOUND

    公开(公告)号:JPS61197615A

    公开(公告)日:1986-09-01

    申请号:JP3828885

    申请日:1985-02-27

    Abstract: PURPOSE:To obtain the titled thermoreversible crosslinkable polymer compound, by radical-copolymerizing N-acryl-piperidine with N-methylolacrylamide in a solution state. CONSTITUTION:A mixture of 1mol of N-acrylpiperidine of formula I and 2mol or below N-methylacrylamide of formula II is dissolved in a solvent (e.g., methanol) so that the concentration of the formed solution may be 1-100%. This solution is copolymerized at 100-200 deg.C for 1-500min to obtain a crosslinkable thermoreversible polymer compound comprising units of formula III and 0.1-66mol% units of formula IV and having, preferably, an intrinsic viscosity [eta]as measured in a chloroform solution or a methanol solution at 30 deg.C of 0.01-6.0. This polymer compound has a property of being easily crosslinked when its molding is heated, so that it can be used as a mechanochemical material, a light-screening material or an adsorbent or for toys, separation membranes, etc.

    THERMALLY REVERSIBLY HYDROPHILIC-HYDROPHOBIC POLYMER AND PREPARATION THEREOF

    公开(公告)号:JPS63178111A

    公开(公告)日:1988-07-22

    申请号:JP961887

    申请日:1987-01-19

    Abstract: PURPOSE:To prepare a reversible hydrophilic - hydrophobic polymer which is useful for light screens, temperature sensors, adsorbents, etc., by the radical polymerization of a specified vinyl compound. CONSTITUTION:A vinyl compound of formula I, i.e. 8-acryloyl-1,4-dioxa-8- azaspiro[4,5] decane, is submitted to radical polymerization to give the title polymer of formula II. This polymer is soluble in water at a low temperature zone and becomes insoluble in water in a high temperature zone reversibly. Unlike the thermally reversible polyacrylamide heretofore known, the present polymer has a transition temperature and can be utilized for light screens, temperature sensors, adsorbents, toys, interior goods, textile printing material, display equipment, separative membrane and mechanochemical materials. The compound of formula I can be obtained by reacting acryloyl chloride, 1,4- dioxa-8-azaspiro[4,5] decane and triethylamine in a solvent preferably at 0-10 deg.C (i.e. the reaction of formula III).

    PRODUCTION OF HEAT-SENSITIVE POLYMER COMPOUND

    公开(公告)号:JPS63117017A

    公开(公告)日:1988-05-21

    申请号:JP26293586

    申请日:1986-11-05

    Abstract: PURPOSE:To obtain the title thermoreversibly hydrophilic and hydrophobic compound having excellent strength and a high MW and being insolubilized in water when warmed, by radical-polymerizing N-isopropylacrylamide at a specified temperature in an alkyl acetate solvent. CONSTITUTION:N-Isopropylacrylamide is dissolved in an alkyl acetate solvent (e.g., ethyl acetate) of the formula (wherein n is 2-6) to form a solution of a concentration of 1-80wt% and radical-polymerized at 0-40 deg.C, preferably, 20-30 deg.C in the presence of, optionally, 0.001-5wt%, based on the vinyl compound, polymerization initiator (e.g., azobisisobutylnitrile) to give the title compound which is poly(N-isopropylacrylamide) of an intrinsic viscosity >=1.00 (in tetrahydrofuran at 27 deg.C). This compound is a thermoreversibly hydrophilic and hydrophobic polymer which is insolubilized in water when warmed and is useful for light-screening bodies, temperature sensors, adsorbents, toys, interiors, separative membranes, etc.

    PHOTOCHROMIC COMPOUND
    30.
    发明专利

    公开(公告)号:JPS6377876A

    公开(公告)日:1988-04-08

    申请号:JP22147186

    申请日:1986-09-19

    Abstract: NEW MATERIAL:A compound expressed by formula I (R1 and R2 represent H, 1-10C alkyl or cyano; R3 and R4 represent 1-5 alkyl; A and B represent electron attractive residue ; X and Y represent O, S or alkyl-substituted nitrogen atom). EXAMPLE:A compound expressed by formula II. USE:An optical memory. The compound can posses a color tone with an optional maximum absorption within the visible ray region by selecting the species of electron attractive substituents A and B and of hetero atoms in the heterocyclic ring. PREPARATION:A chloroalkylated 5-membered heterocyclic ring expressed by formula III is reacted with, for example triphenylphosphine, to form the corresponding phosphonium salt, which is further reacted with a 5-membered heterocyclic ring substituted with a residue having carbonyl group at the 3-position expressed by formula IV.

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