JPH06200378A - Polymer with metal transferred on the surface and production of metallic porous body - Google Patents

Abstract

PURPOSE:To easily produce a polymer with a metal transferred on its surface by depositing another metal on an Al anodic oxide film having micropores on Al so that the micropore is not closed, covering the film with a monomer to fill the micropore, polymerizing the monomer and dissolving off the Al and film. CONSTITUTION:The surface of Al 1 is anodized in aq. sulfuric acid to form an Al anodic oxide film 2 having micropores 3. A metal 4 (Pd, Cu, etc.) other than Al is deposited on the film 2 by vapor deposition, etc., so that the micropore 3 is not closed. The micropore 3 is then covered with a monomer (methyl methacrylate, etc.) to fill at least a part of the micropores, the monomer is polymerized in place to form a polymer 5. The base metal Al is dissolved by a saturated mercuric chloride soln., and then the film 2 is dissolved by mixtures of phosphoric and chromic acids. Consequently, the polymer 5 having a polymer part of the same shape as the micropore 3 and with the metal 4 transferred on its surface is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a polymer in which a metal is transferred to the surface and a method for producing a metal porous body using the polymer.

More specifically, the present invention has a polymer portion having at least partially the same shape as the fine pores of the aluminum anodic oxide coating or the fine pores of the porous glass, and the metal is transferred to the surface of the polymer. The present invention relates to a method for producing a polymer and a method for producing a metal porous body having fine pores of at least partially the same shape as fine pores of an anodized aluminum film or fine pores of porous glass.

[0003]

2. Description of the Related Art Conventionally, as a method for producing a porous metal body having fine pores, 1) a method of sintering fine metal powder, 2) selective selection of a specific component from a phase-separated alloy of a plurality of components It is known to dissolve and remove the other components to leave the other components.

However, the conventional methods are limited in the kinds of metals that can be used, and generally require expensive equipment and a great deal of labor.

[0005]

The present invention is a polymer that can be used to produce a porous metal having fine pores, wherein the fine pores and at least a portion of the porous metal to be obtained are obtained. It is an object of the present invention to provide a method for producing a polymer having a polymer portion having the same shape as described above and having a metal transferred to the polymer surface.

Another object of the present invention is to provide an improved method capable of producing a metal porous body having fine pores.

[0007]

According to the present invention, the above object is to adhere a metal other than aluminum to an aluminum anodic oxide coating having fine pores on (a) aluminum so as not to block the fine pores. And (b) coating an aluminum anodic oxide coating having fine pores on the metal-attached aluminum with the monomer so that the fine pores are at least partially filled with the monomer, (C) polymerizing the monomer in situ to form a polymer, and (d) dissolving and removing the aluminum and the aluminum anodized film without dissolving and removing the polymer and the metal. A polymer having a polymer portion of at least partially the same shape as the fine pores of the aluminum anodic oxide coating, wherein the metal is transferred onto the polymer, and the metal is transferred to the polymer surface. According to the manufacturing method of It is solved.

According to the present invention, the above object also includes (a)
A metal is attached to a porous glass having fine pores so as not to close the fine pores, and (b) a porous glass having fine pores to which the metal is adhered Coated with the monomer so that
(C) polymerizing the monomer in situ to form a polymer,
(D) without dissolving and removing the polymer and the metal,
Dissolving and removing the porous glass to transfer the metal onto the polymer, which has a polymer portion having at least partially the same shape as the fine pores of the porous glass, the metal being the polymer surface. It is solved by a method for producing a polymer transferred to

Further, according to the present invention, the above object is (a)
A metal other than aluminum is adhered to the aluminum anodic oxide film having fine pores on aluminum so as not to block the fine pores, and (b) Aluminum having fine pores on the aluminum to which the metal is adhered. An anodized film is coated with the monomer such that the micropores are at least partially filled with the monomer, and (c) the monomer is polymerized in situ to form a polymer. (D) The aluminum and the aluminum anodized film are dissolved and removed without dissolving and removing the polymer and the metal, the metal is transferred onto the polymer, and the aluminum anodized film having the metal attached thereto Forming a polymer having a polymer portion having at least a part of the same shape as the micropores of the above-mentioned metal and having the metal transferred onto the polymer surface, and (e) using the metal as a catalyst nucleus, The same as or different from the metal attached in Aluminum anodic oxidation characterized by plating a metal to produce metal pores having fine pores on the polymer, and (f) dissolving and removing the polymer without dissolving and removing the metal porous body. This is solved by a method for producing a porous metal body having micropores having at least partially the same shape as the micropores of the coating.

Still further, the above object is (a) a porous glass having fine pores, to which a metal is attached so as not to close the fine pores, and (b) a porous glass having fine pores to which the metal is attached. Is coated with the monomer so that the micropores are at least partially filled with the monomer, and (c) the monomer is polymerized in situ to form a polymer, (d) ) Without dissolving and removing the polymer and the metal, transferring the metal without dissolving and removing the porous glass onto the polymer, and at least partially identical to the fine pores of the porous glass to which the metal is attached. A polymer having a shaped polymer portion to which the metal is transferred is produced, and (e) the metal is used as a catalyst nucleus to
a metal, which is the same as or different from the metal attached in (a), is plated to form a metal porous body having fine pores on the polymer,
(f) Production of a metal porous body having micropores of at least partially the same shape as the micropores of porous glass characterized by dissolving and removing the polymer without dissolving and removing the metal porous body Be solved by the method.

The present invention will be further described below.

A. Those who use aluminum anodized film
Method (Method A) An aluminum anodic oxide film having fine pores on aluminum used in the present invention can be easily obtained by anodizing aluminum in an aqueous solution of sulfuric acid, oxalic acid, phosphoric acid or the like.

The diameter of the pores formed in the anodized film,
The length, interval, etc. are controlled by the electrolytic solution used, the voltage between the opposite electrodes, the electrolytic temperature and other electrolytic conditions.

By controlling the electrolysis conditions, for example, a pore size of 0.005-0.1 micron, a pore length of 0.05-500 micron and a pore size of 0.005-0.5 micron and It is possible to obtain an aluminum anodic oxide film with uniform pore spacing.

The pore size of the aluminum anodized film can be increased by etching the aluminum anodized film. The etching treatment can be performed, for example, by immersing the aluminum anodic oxide film in a phosphoric acid aqueous solution. The etching treatment can be appropriately performed as needed.

In the present invention, for example, as shown in FIG. 1, a metal 4 other than aluminum is adhered to an aluminum anodic oxide coating 2 having fine holes 3 on aluminum 1 so as not to block the fine holes. To do.

Metals other than aluminum that can be used in the present invention are those that do not dissolve under the conditions that dissolve aluminum and the aluminum anodic oxide coating, and that have a function as a catalyst nucleus (catalyst layer) in electroless plating. . Examples of metals other than aluminum that can be used in the present invention include noble metals such as palladium, gold, platinum and silver, and base metals such as copper and nickel.

The method of depositing the metal other than aluminum may be any method as long as the metal other than aluminum does not block the fine pores of the anodized aluminum film. Examples of the method of depositing a metal other than aluminum include vapor deposition, sputtering, coating, and the like.

The deposition of a metal other than aluminum can be carried out by a known method, for example, a method of evaporating the metal under vacuum, for example, a vacuum of 10 ^-2 Torr or less, using a tungsten wire as an evaporation source. .

Sputtering of metals other than aluminum is also known in the art, eg under vacuum, eg 10 ⁻² T.
This can be carried out by a method in which Ar ⁺ ions are made to collide with a metal target material other than aluminum under a vacuum of orr or lower to scatter the metal atoms.

The metal other than aluminum can be applied by a known method, for example, by coating and drying a solution containing a metal salt other than aluminum, reducing the metal salt, and adhering the metal.

In the present invention, an aluminum anodic oxide film having fine pores is coated on a metal-attached aluminum with the monomer so that the fine pores are at least partially filled with the monomer. To do.

In the present invention, substantially all the micropores may be filled with a monomer, or one having micropores may be filled and the other may not be filled, Individual micropores are partially, for example 3 of the micropore volume.
One-third to two-thirds may be filled.

The monomers that can be used in the present invention are those capable of dissolving the polymer produced when the monomers are polymerized in a solvent such as an organic solvent.

As examples of the monomer that can be used in the present invention, vinyl monomers, for example, acrylic monomers such as methyl acrylate and methyl methacrylate,
For example, vinyl aromatic compounds such as styrene can be mentioned. A monomer that undergoes ring-opening polymerization, for example, ε-caprolactam can also be used.

The filling of the monomer may be carried out by any known method. For example, a mixture of the monomer and the polymerization initiator is dropped onto the aluminum anodic oxide film under a reduced pressure atmosphere to carry out the aluminum anodic oxidation. It can be carried out by infiltrating the fine pores of the coating with a monomer and then forming a layer of the monomer having a substantial thickness, for example, 0.05 micron or more, on the aluminum anodized coating.

In the present invention, the monomer coated with the aluminum anodic oxide coating 2 to which the metal 4 is attached is polymerized in situ to form the polymer 5 (FIG. 2).

The monomer used in the present invention can be polymerized by a known method. The vinyl monomer used in the present invention may be polymerized using a known initiator, for example, an organic peroxide such as benzoyl peroxide or an azo compound such as azobisisobutyronitrile, It may be polymerized by irradiation with radiation such as ultraviolet rays.

The polymerization may be carried out under reduced pressure, atmospheric pressure or increased pressure, and may be heated to accelerate the polymerization.

In the present invention, after the monomer is polymerized in situ, the aluminum and the aluminum anodic oxide film are dissolved and removed without dissolving and removing the polymer and the adhered metal.

For example, bare metal aluminum can be dissolved in a saturated ascending liquid, and then the anodized film can be dissolved in a phosphoric acid / chromic acid mixed solution. Further, for example, the base metal aluminum and the anodized film can be dissolved with an aqueous solution of caustic soda. By this operation, the metal 4 adhered on the aluminum anodic oxide coating 2 is transferred onto the polymer 5 (FIG. 3).

In the present invention, electroless plating is performed by using the metal transferred on the polymer as a catalyst nucleus or a catalyst layer.

The electroless plating can be carried out by a known method using an electroless plating solution containing the metal constituting the desired porous metal body as a salt, complex or the like.

After the metal is deposited to some extent by electroless plating, electroless plating may be continued, or electric plating may be continued instead of electroless plating.

The electroplating is carried out by a known method, for example, in the electroplating bath containing the metal constituting the desired metal porous body as a salt, complex or the like, the metal deposited by electroless plating is used. This can be done by applying a cathode voltage as an electrode.

The deposition of the metal porous bodies 6 and 7 by plating is as follows.
The yield can be obtained at the stage shown in FIG. 4 or can be finished at the stage shown in FIG.

In the present invention, the polymer 5 is subjected to electroless plating and, if necessary, further electric plating, and then the metal porous bodies 6 and 7 obtained by plating are not dissolved and removed. Dissolve and remove (FIGS. 6 and 7).

The polymer can be dissolved and removed by using, for example, an organic solvent. When the polymer is methyl polymethacrylate, ketones such as acetone can be used as the organic solvent.

As described above, according to the present invention, it is possible to obtain a metal porous body having micropores having substantially the same shape as the micropores of the aluminum anodized film.

The metal porous body obtained by the present invention (method A) has straight pores which are substantially parallel to each other and independent of each other, in which variations in pore diameter and pore spacing are small.

B. For porous glass (porous glass)
Method (Method B) The porous glass used in the present invention has, for example, a pore size of 0.0.
It has a pore size of 15 to 1.0 μm and a hole spacing of 0.01 to 2.0 μm.

In the present invention, for example, as shown in FIG. 10, the metal 9 is attached to the porous glass having the fine holes 8 so as not to block the second fine holes.

The metal that can be used in the method B of the present invention is one that does not dissolve under the conditions that dissolve the porous glass and has a function as a catalyst nucleus (catalyst layer) in the electroless plating. Examples of metals that can be used in the present invention include noble metals such as palladium, gold, platinum and silver, and base metals such as copper and nickel.

Any method may be used to attach the metal as long as the metal does not block the fine pores of the porous glass.

As a method of attaching the metal, for example, vapor deposition, spattering, coating and the like can be mentioned.

The metal can be vapor-deposited by a known method, for example, a method of evaporating the metal under vacuum, for example, a vacuum of 10 ⁻² Torr or less, using a tungsten wire as an evaporation source.

Metal sputtering is also carried out by a known method, for example, a method of causing Ar ⁺ ions to collide with a metal target material other than aluminum under a vacuum, for example, a vacuum of 10 ⁻² Torr or less, and scattering the metal atoms. I can do it.

The metal can be applied by a known method, for example, a method of applying a solution containing a metal salt other than aluminum, drying the solution, reducing the metal salt, and adhering the metal.

In the present invention, porous glass having metal-attached fine pores is coated with the monomer so that the fine pores are at least partially filled with the monomer.

In the present invention, substantially all the micropores may be filled with the monomer, or one having micropores may be filled and the other may not be filled, Individual micropores are partially, for example 3 of the micropore volume.
One-third to two-thirds may be filled.

The monomers that can be used in the present invention are those capable of dissolving the polymer produced when the monomers are polymerized in a solvent such as an organic solvent.

Examples of the monomers that can be used in the present invention include vinyl monomers, for example, acrylic monomers such as methyl acrylate and methyl methacrylate,
For example, vinyl aromatic compounds such as styrene can be mentioned. A monomer that undergoes ring-opening polymerization, for example, ε-caprolactam can also be used.

The filling of the monomer may be carried out by any known method. For example, a mixture of the monomer and the polymerization initiator is dropped on the porous glass under a reduced pressure atmosphere,
The fine pores of the porous glass are impregnated with the monomer, and a layer of the monomer having a substantial thickness, for example, 0.05 μm or more is formed on the porous glass.

In the present invention, the monomer coated with the porous glass 8 to which the metal 9 is attached is polymerized in situ to form the polymer 10 (FIG. 11).

The monomer used in the present invention can be polymerized by a known method. The vinyl monomer used in the present invention may be polymerized by using a known initiator, for example, an organic peroxide such as benzoyl peroxide, an azo compound such as azobisisobutyronitrile, or an ultraviolet ray. It may be polymerized by irradiating radiation such as.

The polymerization may be carried out under reduced pressure, atmospheric pressure or increased pressure, and may be heated to accelerate the polymerization.

In the present invention, after the monomer is polymerized in situ, the porous glass is melted without dissolving and removing the polymer and the adhered metal. Porous glass can be dissolved with, for example, an aqueous solution of hydrofluoric acid.

By this treatment, the metal 9 attached to the porous glass 8 is transferred onto the polymer 10 (see FIG. 1).
2).

In the present invention, electroless plating is performed using the metal transferred onto the polymer as a catalyst nucleus or catalyst layer.

The electroless plating can be carried out by a known method using an electroless plating solution containing the metal constituting the desired porous metal body as a salt, a complex or the like.

After the metal is deposited to some extent by electroless plating, electroless plating may be continued, or electrolytic plating may be continued instead of electroless plating.

The electroplating is carried out by a known method, for example, by operating the metal deposited by electroless plating in an electroplating bath containing the metal constituting the desired porous metal body as a salt, complex or the like. This can be done by applying a cathode voltage as an electrode.

In the present invention, electroless plating is performed, and in some cases, electroplating is further performed to form the porous metal body 11 (FIG. 13), and then the obtained porous metal body 11 is dissolved and removed. Without removing the polymer 10 by dissolution (FIG. 14).

The polymer can be dissolved and removed by using a solvent. When the polymer is methyl polymethacrylate,
Ketones such as acetone can be used as the solvent.

As described above, it is possible to obtain a metal porous body having micropores of at least partially the same shape as the micropores of porous glass.

The metal porous body obtained by the present invention (method B) has a small variation in pore diameter and pore spacing, and has a large number of bent and penetrating fine pores.

The polymer in which the metal obtained in the present invention is transferred onto the surface of the polymer can be used as a mold for a metal porous body.

The metal porous body obtained in the present invention can be used as a filter for microfiltration, an electrode material, a catalyst, a catalyst carrier, a sensor and the like.

[0069]

According to the present invention, it is possible to easily obtain a porous metal body having fine pores as compared with the conventional method.

Further, according to the present invention, it is possible to obtain a metal porous body having small variations in pore diameter and pore spacing and having straight fine pores which are substantially parallel and independent from each other.

Furthermore, according to the present invention, it is possible to obtain a metal porous body having a small variation in pore diameter and pore spacing and having a large number of bent and penetrating fine pores.

[0072]

【Example】

Example 1 Aluminum plate (15 × 30 × 0.5 ^t mm, Al purity 9
(9.99%) as an anode, the following electrolysis conditions: Electrolyte composition: Oxalic acid 5.0 g / l Electrolysis voltage: 100 V Constant voltage: Electrolyte solution temperature: 20 ° C. Electrolysis time: 20 minutes Electrolysis was performed on an aluminum plate to a thickness of 10 μm An aluminum anodic oxide film having an average pore diameter of 300Å and an average distance between the holes (an average value of the shortest distance between the holes) of about 0.07 μm was formed.

Then, the aluminum anodic oxide film was treated under the following etching conditions: etching solution composition phosphoric acid 50 g / l etching solution temperature 30 ° C. etching time 30 minutes. By this etching treatment, the average pore diameter of the aluminum anodic oxide film was increased from 300Å to 600Å. The etched aluminum anodized film was washed with water and dried.

On the aluminum anodic oxide film thus obtained, a palladium layer having a thickness of about 70Å was vapor-deposited under the following vapor deposition conditions: vacuum degree 1 × 10 ^-5 Torr evaporation source tungsten wire. At that time, palladium was deposited mainly on the flat portion between the fine holes of the aluminum anodic oxide coating, and the fine pores of the aluminum anodic oxide coating were not blocked by the palladium.

Then, methyl methacrylate (MMA) containing 5% by weight of benzoyl peroxide was dropped onto the above aluminum anodic oxide coating on which palladium was vapor-deposited under vacuum to deposit MMA into the fine pores of the aluminum anodic oxide coating. While filling, the aluminum anodic oxide coating was coated with MMA. Subsequently, MMA was polymerized together with the aluminum anodic oxide coating by heating at 40 ° C. for 48 hours, and polymethylmethacrylate (PMM
A) was produced.

The above-obtained aluminum, aluminum anodic oxide coating, vapor-deposited metal and PMMA composite was immersed in a saturated mercuric chloride solution (rising liquid) at room temperature for 30 minutes to dissolve and remove aluminum. Next, phosphoric acid / chromic acid mixture (85% phosphoric acid 35 ml, chromium trioxide 20 g)
/ A solution) for 3 hours at room temperature to dissolve and remove the aluminum anodic oxide coating, and to have a PMMA portion having substantially the same shape (columnar shape) as the fine pores of the aluminum anodic oxide coating and having a PMMA surface. PM with palladium transferred to it
I got MA.

The transferred palladium was localized at the root of the columnar part of PMMA.

Subsequently, nickel electroless plating was carried out using palladium localized at the root of the columnar portion of PMMA as a catalyst nucleus, the following plating conditions: plating solution composition: nickel sulfate 25 g / L sodium hypophosphite 25 g / L. Sodium diphosphate 25 g / L Plating solution PH 10 Plating solution temperature 30 ° C. Plating time 8 hours, the nickel layer has the thickness shown in FIG.
It carried out until it produced | generated to m).

The composite of the plated nickel layer and PMMA was immersed in acetone at room temperature for 3 hours to dissolve and remove PMMA, and micropores having substantially the same shape as those of the aluminum anodic oxide coating were formed. A nickel porous body corresponding to

A photograph of the surface of the obtained nickel porous body is shown in FIG.

Example 2 The procedure of Example 1 was repeated except that the electroless nickel plating was performed for 3 hours instead of 8 hours in Example 1, and the nickel porous body having a thickness of 4.5 μm corresponding to FIG. 6 was repeated. Got

A photograph of a cross section of the obtained nickel porous body is shown in FIG.

Example 3 Instead of performing nickel electroless plating in Example 1, platinum electroless plating was performed under the following plating conditions: plating solution composition: platinum / ammine complex (as platinum) 0.8 g / l plating solution PH (ammonia) 12.4 plating solution temperature 25 ° C. plating time 48 hours except that the method of Example 1 was repeated to obtain a 15 μm thick platinum porous body corresponding to FIG. 7.

Example 4 Instead of performing nickel electroless plating in Example 1, palladium electroless plating was performed under the following plating conditions: plating solution composition: palladium chloride 2.0 g / L ammonium chloride 26 g / L ammonia water 160 g / L Sodium phosphite 10 g / L plating solution temperature 50 ° C. plating time 3 hours, except that the method is carried out for 3 hours to obtain a thickness of 5
A palladium porous body having a size of μm and corresponding to FIG. 6 was obtained.

Example 5 Instead of the aluminum anodic oxide film used in the method of Example 1, porous glass (manufactured by Ise Chemical Co., Ltd., average pore diameter 0.3 μm, thickness about 0.3 mm) was used. The following method was carried out.

Palladium catalyst nuclei were formed on one surface of the porous glass under the same conditions as in Example 1, and subsequently MMA monomers were filled in the pores.

Then, heat treatment was performed at 50 ° C. for 12 hours to obtain PMMA.

Next, porous glass, palladium and P
The porous glass was completely dissolved by immersing the MMA composite in an aqueous 20 wt% hydrofluoric acid solution at room temperature for about 2 weeks. Subsequently, nickel electroless plating was performed using a palladium catalyst nucleus. Nickel electroless plating was performed under the same conditions as in Example 1.

It took 8 days to completely fill the pores with a nick.

After filling with nickel, PMMA was dissolved and removed in acetone to obtain a nickel porous body having the same pore structure as the fine pores of the porous glass.

Porous glass used (porous glass)
A photograph of the surface of the nickel porous body is shown in FIG. 15, and a photograph of the surface of the obtained nickel porous body is shown in FIG.

[Brief description of drawings]

FIG. 1 shows an aluminum anodic oxide coating 2 having micropores 3 on aluminum 1 and a metal 4 other than aluminum deposited on the coating 2.

FIG. 2 shows a film 2 having a metal 4 attached thereto and a polymer 5 formed as shown in FIG.

FIG. 3 shows a polymer 5 having a metal 4 other than aluminum transferred thereon, which is obtained by dissolving and removing aluminum 1 and aluminum anodized film 2 shown in FIG.

FIG. 4 shows a polymer 5 onto which the metal 4 shown in FIG. 3 is transferred and a metal porous body 6 formed by plating.

5 shows a polymer 5 to which the metal 4 shown in FIG. 3 is transferred, and a metal porous body 7 further formed by plating than that shown in FIG.

FIG. 6 shows a metal porous body 6 obtained by dissolving and removing the polymer shown in FIG.

FIG. 7 shows a metal porous body 7 obtained by dissolving and removing the polymer shown in FIG.

FIG. 8 is a photograph showing the surface of a nickel porous body obtained by the present invention.

FIG. 9 is a photograph showing a cross section of a nickel porous body obtained by the present invention.

FIG. 10: Porous glass 8 and metal 9 attached thereon
Indicates.

11 shows the porous glass 8 to which the metal 9 shown in FIG. 10 is attached and the polymer 10 formed.

12 shows a polymer 10 on which a metal 9 obtained by dissolving and removing the porous glass 8 shown in FIG. 11 is transferred.

FIG. 13 is a polymer 10 on which the metal 9 shown in FIG. 12 is transferred.
And the metal porous body 11 produced by plating.

14 shows a metal porous body 11 obtained by dissolving and removing the polymer 10 shown in FIG.

FIG. 15 is a photograph showing the surface of porous glass.

FIG. 16 is a photograph showing the surface of a nickel porous body produced using porous glass.

Claims (4)

[Claims] 1. A metal other than aluminum is adhered to an aluminum anodic oxide coating having fine pores on aluminum, so as not to block the fine pores. (B) Aluminum to which the metal is adhered. Coating an upper anodized aluminum anodic oxide coating with the monomer such that the micropores are at least partially filled with the monomer; and (c) in situ the monomer. Polymerizing to form a polymer, and (d) transferring the metal onto the polymer by dissolving and removing the aluminum and the aluminum anodized film without dissolving and removing the polymer and the metal. A method for producing a polymer having a polymer portion having the same shape as at least partially the fine pores of the characteristic aluminum anodic oxide coating, wherein the metal is transferred to the polymer surface. 2. (a) a metal is attached to a porous glass having fine pores so as not to block the fine pores, and (b) a porous glass having fine pores, to which the metal is adhered, is Coating the monomer so that the pores are at least partially filled with the monomer, (c) polymerizing the monomer in situ to form a polymer, (d) the polymer And a polymer having at least partially the same shape as the fine pores of the porous glass, characterized by dissolving and removing the porous glass and transferring the metal onto the polymer without dissolving and removing the metal. A method for producing a polymer having a portion, wherein a metal is transferred to the surface of the polymer. 3. (a) A metal other than aluminum is adhered to an aluminum anodic oxide coating having fine pores on aluminum so as not to block the fine pores, and (b) Aluminum to which the metal is adhered. Coating an upper anodized aluminum anodic oxide coating with a monomer so that the micropores are at least partially filled with the monomer, and (c) in situ the monomer. Polymerizing to form a polymer, (d) without dissolving and removing the polymer and the metal, the aluminum and the aluminum anodized film are dissolved and removed, and the metal is transferred onto the polymer; A polymer having a polymer portion having at least a part of the same shape as the fine pores of the aluminum anodic oxide coating on which the metal is attached and having the metal transferred to the surface of the polymer is formed. As the catalyst nucleus, the above (a In order to form a porous metal body having fine pores on the polymer by depositing the same or different metal as the metal adhered in step (f), the polymer is dissolved and removed without dissolving and removing the porous metal body. A method for producing a metal porous body having micropores of at least partially the same shape as the micropores of the aluminum anodic oxide coating. 4. (a) A metal is attached to a porous glass having fine pores so as not to block the fine pores, and (b) a porous glass having fine pores to which the metal is adhered is prepared. Is coated with the monomer so that it is at least partially filled with the monomer, (c) the monomer is polymerized in situ to form a polymer, and (d) the polymer and A polymer having at least partially the same shape as the fine pores of the porous glass to which the metal is attached, by dissolving and removing the porous glass and transferring the metal onto the polymer without dissolving and removing the metal. A polymer having a portion and having the metal transferred to the surface of the polymer is produced, and (e) a metal which is the same as or different from the metal attached in (a) above is used as a catalyst nucleus, and A porous metal having fine pores is produced on the polymer, and (f) the porous metal is Method for producing a porous metal body having no micropores of microporous and at least partially identical shape of the porous glass, which comprises dissolving and removing the polymer to the solution removed.