Porous polymer material

Patent metadata

Field	Value
Publication number	US-9522358-B2
Application number	US-201113825678-A
Country	US
Kind code	B2
Filing date	Sep 23, 2011
Priority date	Sep 24, 2010
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

The present disclosure relates to a polymer material comprising mesopores extending between melamine-formaldehyde co-polymer nano-particles and wherein micropores extend within the co-polymer nano-particles, methods of producing the same and uses thereof.

First claim

The invention claimed is:

1. A polymer material comprising mesopores disposed between melamine-formaldehyde co-polymer nano-particles and wherein micropores extend within the co-polymer nano-particles, wherein the melamine-formaldehyde co-polymer is composed of repeating units of a monomer having a ring structure, wherein each monomer ring structure comprises at least three melamine groups.

2. The polymer material as claimed in claim 1 , wherein the polymer material has a surface area of at least 300 m 2 /g.

3. The polymer material of claim 1 , wherein, in each monomer ring structure, an alkyl bridge extends between a pair of melamine groups.

4. The polymer material as claimed in claim 1 , wherein the size of said mesopores is in the range of 5 nm to 50 nm.

5. A sorbent material for adsorbing gas comprising the polymer material as claimed in claim 1 .

6. A sorbent material for adsorbing gas comprising an agglomeration of melamine-formaldehyde co-polymer nano-particles with mesopores extending between said nano-particles and wherein micropores extend within the nano-particles.

7. The sorbent material as claimed in claim 6 , wherein the sorbent material exhibits the ability to adsorb carbon dioxide gas.

8. The sorbent material as claimed in claim 7 , wherein the adsorption capacity of carbon dioxide gas is at least 10 wt % based on the total weight of the sorbent material, measured at 1 atm, 0° C.

9. Use of the polymer material as claimed in claim 1 to adsorb a gas.

10. The use as claimed in claim 9 , wherein the gas is carbon dioxide or carbon monoxide.

11. A method of removing at least one of carbon dioxide gas and carbon monoxide gas from a gas stream containing said at least one of carbon dioxide gas and carbon monoxide gas, the method comprising the step of contacting the gas stream with a polymer material as claimed in claim 1 to adsorb at least one of said carbon dioxide gas and carbon monoxide gas thereon.

12. The polymer material of claim 3 , wherein the alkyl bridge is a methyl.

13. The polymer material of claim 1 , wherein three melamine groups are provided in each monomer ring structure.

14. The polymer material of claim 1 , wherein the total pore volume of the mesopores and the micropores is in the range of 0.7 cm 3 /g to 3.5 cm 3 /g.

15. The polymer material of claim 1 , wherein the total pore volume of the micropores is in the range of 0.06 cm 3 /g to 0.21 cm 3 /g.

16. The polymer material of claim 1 , wherein the monomer ring structure is of the following structure:

Assignees

• Zhang Yugen
• Ying Jackie Y
• Tan Mei Xuan
• Agency Science Tech & Res

Inventors

• Zhang Yugen
• Ying Jackie Y
• Tan Mei Xuan

Classifications

• B01D53/62 Primary

  Carbon oxides · CPC title

• B01D53/02 Primary

  by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)} · CPC title

• B01D2257/504

  Carbon dioxide · CPC title

• C08J2361/28

  with melamine · CPC title

• B01J20/264

  derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers · CPC title