Porous polymer material

Patent metadata

Field	Value
Publication number	US-2017158837-A1
Application number	US-201615382675-A
Country	US
Kind code	A1
Filing date	Dec 18, 2016
Priority date	Sep 24, 2010
Publication date	Jun 8, 2017
Grant date	—

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

What is claimed is:

1 . A method of making a polymer material comprising the step of reacting melamine with formaldehyde in the presence of a non-aqueous polar solvent.

2 . The method as claimed in claim 1 , wherein the non-aqueous polar solvent is an aprotic solvent, preferably the aprotic solvent is selected from sulfoxides and sulfones, or the aprotic solvent is selected from an aliphatic sulfoxide, optionally the aliphatic sulfoxide has 2 to 10 carbon atoms, preferably 2 to carbon atoms, and optionally the aliphatic sulfoxide is dimethyl sulfoxide.

3 . The method as claimed in claim 1 , wherein the reaction step is undertaken at a temperature of between 120° C. to 180° C., optionally the non-aqueous polar solvent is provided in admixture with an aqueous medium, preferably water, optionally the volume ratio of polar solvent to water is from 1:1 to 3:1.

4 . The method as claimed in claim 1 , wherein the molar ratio of formaldehyde to melamine is in a range from 1 to 5.

5 . The method as claimed in claim 4 , wherein the molar ratio of formaldehyde to melamine is in a range from 1.5 to 2.5.

6 . The method as claimed in claim 1 , wherein said reacting step is undertaken for a period of from 48 hours to 120 hours.

7 . The method as claimed in claim 1 , wherein the reaction step is undertaken in a closed pressure reactor.

8 . The method as claimed in claim 1 , wherein the reaction step is undertaken in a partially heated reactor.

Assignees

• Agency Science Tech & Res

Inventors

• Zhang Yugen
• Ying Jackie Y
• Tan Mei Xuan

Classifications

• B01D53/62 Primary

  Carbon oxides · CPC title

• B01D53/02

  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

• B01J20/262

  obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G) · CPC title

• C08G12/32

  Melamines · CPC title