| 摘要 |
1,137,392. Addition polymerization on a substrate. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Jan., 1966 [10 Feb., 1965], No. 5764/65. Heading C3P. [Also in Division D1] A process for producing composite materials by addition polymerization of ethylenically unsaturated materials on a substrate comprises contacting the substrate with (i) ethylenically unsaturated material which is normally polymerizable by a free-radical mechanism; and an initiator system comprising (ii) an organic halogen-containing compound having at least one Cl-N bond or (labile halogen atom)- carbon bond and (iii) a transition metal coordination complex which contains in the molecule one or more ligands selected from carbonyl, organic phosphine, organic arsine, organic stibine, organic phosphite, isocyanide and 1,3-diketone. Component (ii) may be a halogenated hydrocarbon, chloral, a chlorinated acetic acid, amide or nitrile, benzotrichloride or a polymer such as poly-(vinyl trichloracetate) or poly-(vinyl chloroacetate); or an N-halogenated derivative of an amide, imide or sulphonamide. Component (iii) may be a transition metal carbonyl or part carbonyl, optionally used in conjunction with an organic phosphine, arsine or stibine; other suitable complexes are metal complexes with isocyanides, triaryl phosphites, trihydrocarbyl phosphines, and acetylacetone or other 1,3-dicarbonyl compounds. The metal constituent of the complex may be Fe, Co, Ni, Mo, W, Cr, Mn, Ru or Re. The ethylenically unsaturated material (i) may be vinyl acetate, acrylic or methacrylic acid or a derivative thereof, e.g. ethyl acrylate, methyl methacrylate, dimethyl amino ethyl methacrylate, acrylonitrile or acrylamide, itaconic acid, styrene, vinyl or vinylidene chloride, vinyl pyridine, vinyl piperazine or a vinyl alkylamine. The monomer and initiator components may be applied to the substrate individually or in combinations; the components may be applied from solution in an organic solvent or as a dispersion. Polymerization can be activated thermally and/or photochemically. Substrates which may be treated include wood, wool, silk, rubber, cotton, animal hairs, paper, asbestos and synthetic polymers, such as regenerated cellulose, cellulose esters, polyesters, polyamides, polyolefins, and halo-olefin polymers.
|
