Block copolymer, multilayer structure, solid polymer film, fuel cell, production method for multilayer structure, and production method for multilayer structure containing inorganic nanoparticles

2:

• The block copolymer according to claim 1, wherein m, n, and t are such that m+n/m+n+t=0.2-0.8.

3:

• The block copolymer according to claim 1, wherein n is included.

4:

• A multilayered structure wherein the hydrophilic segments represented by m and n and the hydrophobic segment represented by t of the block copolymer according to claim 1 have a microlayer-separated layer structure.

5:

• The multilayered structure according to claim 4, wherein a thickness of the multilayered structure is from 20 nm to 500 nm.

6:

• The multilayered structure according to claim 4, wherein the microlayers having hydrophilic segments include inorganic nanoparticles.

7:

• The multilayered structure according to claim 6, wherein the hydrophilic segments include a catechol group and quinone.

8:

• A solid polymer membrane for a separator of a fuel cell including the multilayered structure according to claim 6.

9:

• A fuel cell including the solid polymer membrane according to claim 8, an anode electrode, and a cathode electrode.

11:

• The method for producing the multilayered structure according to claim 10, wherein n is included.

12:

• A method for producing a multilayered structure including inorganic nanoparticles that includes
• an immersion step for immersing a multilayered structure produced by the production method according to claim 10 in a solution that includes an inorganic ion,
• an inorganic nanoparticle production step in which the inorganic ion is reduced by the catechol groups of segments represented by m of the multilayered structure and inorganic nanoparticles are produced in microlayers that include segments represented by m.

14:

• The block copolymer according to claim 13, wherein the hydrophilic segment including the functional group having the acid dissociation constant pKa of from 0.5 to 7 is included.

15:

• A multilayered structure in which the hydrophilic segments and hydrophobic segments of the block copolymer according to claim 13 have a microlayer-separated layer structure.

16:

• The multilayered structure according to claim 15, wherein a thickness of the multilayered structure is from 20 nm to 500 nm.

17:

• The multilayered structure according to claim 15, wherein microlayers having hydrophilic segments include inorganic nanoparticles.

18:

• The multilayered structure according to claim 17, wherein the hydrophilic segments include a catechol group and quinone.

19:

• A solid polymer membrane for a separator of a fuel cell including the multilayered structure according to claim 15.

20:

• A fuel cell including the solid polymer membrane according to claim 19, an anode electrode, and a cathode electrode.

21:

• The block copolymer according to claim 3, wherein the acid dissociation constant pKa is from 0.5 to 4 and R2 does not include a catechol group.

22:

• A multilayered structure wherein the hydrophilic segments represented by m and n and the hydrophobic segment represented by t of the block copolymer according to claim 21 have a microlayer-separated layer structure.

23:

• The multilayered structure according to claim 22, wherein the microlayers having hydrophilic segments include inorganic nanoparticles.

24:

• A solid polymer membrane for a separator of a fuel cell including the multilayered structure according to claim 23.

25:

• A fuel cell including the solid polymer membrane according to claim 24, an anode electrode, and a cathode electrode.

26:

• The method for producing the multilayered structure according to claim 11, wherein the acid dissociation constant pKa is from 0.5 to 4 and R2 does not include a catechol group.

27:

• A method for producing a multilayered structure including inorganic nanoparticles that includes
• an immersion step for immersing a multilayered structure produced by the production method according to claim 26 in a solution that includes an inorganic ion,
• an inorganic nanoparticle production step in which the inorganic ion is reduced by the catechol groups of segments represented by m of the multilayered structure and inorganic nanoparticles are produced in microlayers that include segments represented by m.